Neutropenia causes: Difference between revisions

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Latest revision as of 22:08, 10 January 2020

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Ogheneochuko Ajari, MB.BS, MS [2], Daniel A. Gerber, M.D. [3]

Overview

Neutropenia may be caused by drugs, cancer, radiation, vitamin B12 deficiency or folate deficiency. Marginalization and sequestration of neutrophils also can cause neutropenia following procedures such as hemodialysis.

Causes

The most common etiologies are constitutional or benign ethnic neutropenia (BEN) and drug-induced neutropenia.

Malignancy is often associated with neutropenia, due to impaired production from myelodysplastic syndromes and hematological malignancies with bone marrow infiltration, hemolysis and impaired production from cytotoxic chemotherapy, and antibody-mediated destruction of neutrophils.

Alternative etiologies include post-infectious neutropenia resulting from bacterial, fungal, or viral infections. While bacterial infections typically cause leukocytosis, salmonella, shigella enteritis, brucellosis, tularemia, tuberculosis, and rickettsial diseases, such as Rocky Mountain spotted fever can present with neutropenia.^[1] ^[2] ^[3] ^[4] ^[5]

Parasitic diseases with neutropenia include leishmaniasis with hemolysis and splenic sequestration and malaria due to hyperreactive malarial splenomegaly (HMS).^[6] Viral etiologies include HIV, EBV, CMV, HHV-6, viral hepatitis, dengue fever, yellow fever, measles, varicella, and rubella.^[7]

Immunodeficiencies are frequently associated with neutropenia (38% in Hyper IgM syndrome, 12% in CVID, and 7% in X-linked agammaglobulinemia) as are autoimmune disorders including up to 50% of patients with systemic lupus erythematosus, yet with lower overall prevalence. While rheumatoid arthritis infrequently presents with neutropenia, severe neutropenia can develop in the setting of large granular lymphocyte (LGL) leukemia or Felty's syndrome.^[8]

Finally, nutritional deficiencies resulting in neutropenia are typically attributed to vitamin B12, folate, and copper and are related to inadequate dietary intake, pernicious anemia, bariatric surgery, and malabsorptive syndromes.

Life Threatening Causes

Life-threatening causes include conditions which may result in death or permanent disability within 24 hours if left untreated.

Common Causes

Causes by Organ System

Cardiovascular	No underlying causes
Chemical / poisoning	Arsenic trioxide, gold salts, strontium-89
Dermatologic	Chediak-Higashi disease, dyskeratosis congenita, x-linked, Elejalde syndrome , reticular dysgenesis, reticular dysplasia
Drug Side Effect	5-azacytidine, acetophenazine, aclarubicin, actinomycin D, acyclovir, aflibercept, albendazole, alemtuzumab, allopurinol, amantadine, amiloride, aminoglutethimide, aminoglutethimide, aminopyrine, amiodarone,amodiaquine, ampicillin, amsacrine, anakinra, anidulafungin, anti-thymocyte globulin, antibiotics, antipyrine, aprepitant, aripiprazole, arsenic trioxide, asenapine, atazanavir, atovaquone, auranofin, azacitidine, azathioprine, aztreonam, barbiturates, belinostat, benazepril, bendamustine, bevacizumab, blinatumomab, boceprevir, bortezomib, bosutinib, brentuximab, busulfan, cabazitaxel, cabozantinib, canakinumab, candesartan, capecitabine, captopril, carbimazole, carboplatin, carfilzomib, carmustine, cefaclor, cefadroxil, cefazolin, cefepime, cefixime, cefoperazone, cefotetan, cefotiam, cefoxitin, ceftaroline, ceftriaxone, cefuroxime, cephalexin, cephapirin, cephradine, cetuximab, chemotherapy, chlorambucil, chloramphenicol, chloroquine, chlorpromazine, chlorthalidone, cidofovir, cilazapril, cimetidine, cisplatin, cladribine, clarithromycin, clindamycin, clofarabine, clopidogrel, clozapine, colchicine, crizotinib, cromolyn, cyclophosphamide, cytarabine, cytosine arabinoside, dabrafenib,dacarbazine, daclatasvir, dactinomycin, dasatinib, daunorubicin, decitabine, deferasirox, deferiprone, delavirdine, desipramine, dexrazoxane, diatrizoate, diazepam, diazoxide, dicloxacillin, Diethylpropion diflunisal, dipyrone, docetaxel, dolutegravir, doripenem, dothiepin, doxorubicin, doxycycline, efavirenz, eflornithine, elvitegravir, enalapril, enalaprilat, enfuvirtide, enzalutamide, epirubicin, eprosartan, eribulin, etanercept, ethacrynic acid, ethambutol, ethosuximide, ethotoin, etodolac, etoposide, everolimus, felbamate, fentanyl, fidaxomicin, flucytosine, fludarabine, fluorouracil, fluoxetine, fosamprenavir, foscarnet, fosinopril, ganciclovir, gefitinib, gemcitabine, gemifloxacin mesylate, glyburide, golimumab, griseofulvin, guanidinium, haloperidol, hydroxycarbamide, hydroxyurea, ibuprofen lysine, ibritumomab tiuxetan, ibrutinib, ibuprofen, idarubicin, idelalisib, iloperidone, imatinib, imipenem cilastatin, indinavir, indomethacin, infliximab, interferon alfa-2a, interferon alfa-2b, interferon alfacon-1, interferon beta-1b, irinotecan, isoniazid, isotretinoin, itraconazole, ixabepilone, lamivudine, lamotrigine, lansoprazole, lenalidomide, levamisole, levetiracetam, levomepromazine, lincomycin, linezolid, lisinopril, loxapine, lurasidone, maprotiline, maraviroc, meclofenamate, mercaptopurine, meropenem, mesalamine, methazolamide, methimazole, methotrexate, methyldopa, metolazone, mexiletine, mianserin, micafungin, mifamurtide, milnacipran, minocycline, mirtazapine, mitotane, mitoxantrone, moexipril, moxalactam, mycophenolate, mycophenolic acid, nafcillin, naproxen, nefazodone, nelarabine, nelfinavir, nevirapine, nilotinib, nilutamide, norfloxacin, nortriptyline, obinutuzumab, ofatumumab, ofloxacin, olanzapine, olaparib, olsalazine,omacetaxine, omeprazole, oprelvekin, oxacillin, oxaliplatin, paclitaxel, palbociclib, paliperidone, panobinostat, pantoprazole, pazopanib, peginterferon alfa-2a, peginterferon alfa-2b, pemetrexed, penicillamine, penicillin, penicillin G, pentamidine, pentostatin, peramivir, perazine, perindopril, pertuzumab, phenylbutazone, phenytoin, piperacillin, piperaquine, pipothiazine, piroxicam, pixantrone, pomalidomide, ponatinib, posaconazole, pralatrexate, prednisone, probenecid, procainamide, procarbazine, prochlorperazine, proguanil, propylthiouracil, pyrimethamine, quetiapine, quinapril, quinidine, quinine, radium chloride, raltitrexed, ramipril, ramucirumab, ranitidine, rasagiline, rasburicase, regorafenib, remoxipride, ribavirin, rifabutin, rifapentine, rifaximin, rilonacept, riluzole, risperidone, ritodrine, ritonavir, rituximab, romidepsin, ruxolitinib, saquinavir, satraplatin, secukinumab, sirolimus, sodium aurothiomalate, sofosbuvir, sorafenib, stavudine, stiripentol, succimer, Sulfacetamide, Sulfamethoxazole/Trimethoprim (oral), sulfasalazine, sulfonamide, sulindac, sunitinib, suramin, tacrolimus, tedizolid, teicoplanin, temozolomide, temsirolimus, teniposide, tenofovir, terbinafine, teriflunomide, thalidomide, thiothixene, ticarcillin, ticlopidine, tipranavir, tocilizumab, tofacitinib, tolazamide, tolmetin, topotecan, tositumomab, trabectedin, trametinib, trandolapril, trastuzumab, trimethadione, trimethoprim, trimetrexate, valganciclovir, valproic acid, valrubicin, valsartan, vancomycin, vandetanib, vesnarinone, vincristine, vindesine, vinflunine, vinorelbine, zidovudine, zileuton, ziprasidone, ziv-aflibercept, zoledronic acid
Ear Nose Throat	No underlying causes
Endocrine	Hyperthyroidism
Environmental	No underlying causes
Gastroenterologic	Glycogen storage disorder, hypersplenism, Shwachman-Diamond syndrome
Genetic	Barth syndrome, cartilage-hair hypoplasia, Chediak-Higashi disease, Cohen syndrome, Dubowitz syndrome, Elejalde syndrome , familial histiocytic reticulosis, Fanconi syndrome, fumarate hydratase deficiency, Griscelli syndrome type 1, methylmalonic aciduria, myelokathexis, propionic acidemia, propionyl-CoA carboxylase deficiency PCCA type, Shwachman-Diamond syndrome, WHIM syndrome
Hematologic	Alloimmune neonatal neutropenia, alloimmune neutropenia in infancy, aplastic anemia, autoimmune neutropenia, chronic lymphocytic leukemia, cyclical neutropenia, familial histiocytic reticulosis, Hermansky-Pudlak syndrome, histiocytosis X, hypersplenism, Kostmann disease, myelodysplastic syndrome, myelofibrosis, pancytopenia, paroxysmal nocturnal haemoglobinuria, Shwachman-Diamond syndrome, x-linked agammaglobulinemia
Iatrogenic	Hemodialysis, radiation therapy
Infectious Disease	Brucellosis, cytomegalovirus, dengue, Epstein-Barr virus, hepatitis A, hepatitis B, hepatitis C, hepatitis, human granulocytic ehrlichiosis, human immunodeficiency virus, human monocytotropic ehrlichiosis, kala azar, Kostmann disease, lassa fever, Lyme disease, malaria, measles, rickettsiae, rickettsial infections, rocky mountain spotted fever, rubella, salmonella infection, sepsis, severe acute respiratory syndrome, shigellosis, tuberculosis, tularemia, varicella, visceral leishmaniasis, WHIM syndrome
Musculoskeletal / Ortho	Cartilage-hair hypoplasia, metaphyseal chondrodysplasia, Mckusick type
Neurologic	Fumarate hydratase deficiency
Nutritional / Metabolic	Copper deficiency, glutathione synthase deficiency, glycogen storage disorder, glycogenosis type 1b, hereditary orotic aciduria, isovaleric acidemia, methylmalonic aciduria, propionic acidemia, propionyl-CoA carboxylase deficiency PCCA type, vitamin deficiencies
Obstetric/Gynecologic	No underlying causes
Oncologic	Chronic lymphocytic leukemia, hairy cell leukemia, histiocytosis X, leukemia, myelodysplastic syndrome, myelofibrosis
Opthalmologic	No underlying causes
Overdose / Toxicity	Alcoholism
Psychiatric	No underlying causes
Pulmonary	Severe acute respiratory syndrome
Renal / Electrolyte	Fanconi syndrome
Rheum / Immune / Allergy	Alloimmune neonatal neutropenia, alloimmune neutropenia in infancy, autoimmune lymphoproliferative syndrome type 1, autoimmune lymphoproliferative syndrome type 2, autoimmune neutropenia, common variable immune deficiency, Felty's syndrome, histiocytosis X, hyper-immunoglobulin M syndrome, lupus, rheumatoid arthritis, secondary autoimmune neutropenia, WHIM syndrome, x-linked agammaglobulinemia, x-linked hyperimmunoglobulin M syndrome
Sexual	No underlying causes
Trauma	No underlying causes
Urologic	No underlying causes
Dental	No underlying causes
Miscellaneous	No underlying causes

Causes in Alphabetical Order

References

↑ James J, Dutta TK, Jayanthi S. (1997). "Correlation of clinical and hematologic profiles with bone marrow responses in typhoid fever". Am J Trop Med Hyg. 57 (3): 313–6. Text "pmid 9311642" ignored (help)
↑ Fried D, Maytal J, Hanukoglu A. (1982). "The differential leukocyte count in shigellosis". Infection. 10 (1): 13–4. Text "pmid 7068229" ignored (help)
↑ al-Eissa Y, al-Nasser M. (1993). "Haematological manifestations of childhood brucellosis". Infection. 21 (1): 23–6. Text "pmid 8449576" ignored (help)
↑ Syrjälä H. (1986). "Peripheral blood leukocyte counts, erythrocyte sedimentation rate and C-reactive protein in tularemia caused by the type B strain of Francisella tularensis". Infection. 14 (2): 51–4. Text "pmid 3710592" ignored (help)
↑ Hall GW, Schwartz RP. (1979). "White blood cell count and differential in Rocky Mountain spotted fever". N C Med J. 40 (4): 212–4. Text "pmid 286884" ignored (help)
↑ Dale DC, Wolff SM. (1973). "Studies of the neutropenia of acute malaria". Blood. 41 (2): 197–206. Text "pmid 4575057" ignored (help)
↑ Schooley RT, Densen P, Harmon D, Felsenstein D, Hirsch MS, Henle W, Weitzman S. (1984). "Antineutrophil antibodies in infectious mononucleosis". Am J Med. 76 (1): 85–90. Text "pmid 6318560" ignored (help)
↑ Bucknall RC, Davis P, Bacon PA, Jones JV (2009). "Neutropenia in rheumatoid arthritis: studies on possible contributing factors". Ann Rheum Dis. 41 (3): 242–7. PMID 6979979.
↑ Andrès E, Zimmer J, Affenberger S, Federici L, Alt M, Maloisel F. (2006). "Idiosyncratic drug-induced agranulocytosis: Update of an old disorder". Eur J Intern Med. 17 (8): 529–35. Text "pmid 17142169" ignored (help)

Template:WH Template:WS

[PMID9311642-1] James J, Dutta TK, Jayanthi S. (1997). "Correlation of clinical and hematologic profiles with bone marrow responses in typhoid fever". Am J Trop Med Hyg. 57 (3): 313–6. Text "pmid 9311642" ignored (help)

[PMID7068229-2] Fried D, Maytal J, Hanukoglu A. (1982). "The differential leukocyte count in shigellosis". Infection. 10 (1): 13–4. Text "pmid 7068229" ignored (help)

[PMID8449576-3] -Eissa Y, al-Nasser M. (1993). "Haematological manifestations of childhood brucellosis". Infection. 21 (1): 23–6. Text "pmid 8449576" ignored (help)

[PMID3710592-4] Syrjälä H. (1986). "Peripheral blood leukocyte counts, erythrocyte sedimentation rate and C-reactive protein in tularemia caused by the type B strain of Francisella tularensis". Infection. 14 (2): 51–4. Text "pmid 3710592" ignored (help)

[PMID286884-5] Hall GW, Schwartz RP. (1979). "White blood cell count and differential in Rocky Mountain spotted fever". N C Med J. 40 (4): 212–4. Text "pmid 286884" ignored (help)

[PMID4575057-6] Dale DC, Wolff SM. (1973). "Studies of the neutropenia of acute malaria". Blood. 41 (2): 197–206. Text "pmid 4575057" ignored (help)

[PMID6318560-7] Schooley RT, Densen P, Harmon D, Felsenstein D, Hirsch MS, Henle W, Weitzman S. (1984). "Antineutrophil antibodies in infectious mononucleosis". Am J Med. 76 (1): 85–90. Text "pmid 6318560" ignored (help)

[PMID6979979-8] Bucknall RC, Davis P, Bacon PA, Jones JV (2009). "Neutropenia in rheumatoid arthritis: studies on possible contributing factors". Ann Rheum Dis. 41 (3): 242–7. PMID 6979979.

[PMID17142169-9] Andrès E, Zimmer J, Affenberger S, Federici L, Alt M, Maloisel F. (2006). "Idiosyncratic drug-induced agranulocytosis: Update of an old disorder". Eur J Intern Med. 17 (8): 529–35. Text "pmid 17142169" ignored (help)

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@@ Line 1: / Line 1: @@
 __NOTOC__
-{{ Neutropenia }}
+{{Neutropenia}}
+{{CMG}}; {{AE}} {{Ochuko}}, {{DG}}
-{{CMG}}
+==Overview==
+[[Neutropenia]] may be caused by [[drugs]], [[cancer]], [[radiation]], [[vitamin B12 deficiency]] or [[folate deficiency]]. Marginalization and sequestration of neutrophils also can cause neutropenia following procedures such as [[hemodialysis]].
+==Causes==
+The most common etiologies are constitutional or benign ethnic neutropenia (BEN) and drug-induced [[neutropenia]].
+[[Malignancy]] is often associated with neutropenia, due to impaired production from [[myelodysplastic syndromes]] and hematological malignancies with [[bone marrow]] infiltration, [[hemolysis]] and impaired production from [[cytotoxic]] [[chemotherapy]], and [[antibody]]-mediated destruction of neutrophils.
+Alternative etiologies include post-infectious neutropenia resulting from [[bacterial]], [[fungal]], or [[viral]] [[infections]]. While bacterial infections typically cause [[leukocytosis]], [[Salmonella enterica|salmonella]], [[shigella enteritis]], [[brucellosis]], [[tularemia]], [[tuberculosis]], and [[rickettsial disease]]s, such as [[Rocky Mountain spotted fever]] can present with neutropenia.<ref name="PMID9311642">{{cite journal |author=James J, Dutta TK, Jayanthi S.|title=Correlation of clinical and hematologic profiles with bone marrow responses in typhoid fever. |journal=Am J Trop Med Hyg. |volume=57|issue=3 |pages=313-6 |year=1997|pmid 9311642|doi=|url=https://www.ncbi.nlm.nih.gov/pubmed?term=9311642}}</ref> <ref name="PMID7068229">{{cite journal |author=Fried D, Maytal J, Hanukoglu A.|title=The differential leukocyte count in shigellosis. |journal=Infection. |volume=10|issue=1 |pages=13-4 |year=1982|pmid 7068229|doi=|url=https://www.ncbi.nlm.nih.gov/pubmed?term=7068229}}</ref> <ref name="PMID8449576">{{cite journal |author=al-Eissa Y, al-Nasser M.|title=Haematological manifestations of childhood brucellosis. |journal=Infection. |volume=21|issue=1 |pages=23-6 |year=1993|pmid 8449576|doi=|url=https://www.ncbi.nlm.nih.gov/pubmed?term=8449576}}</ref> <ref name="PMID3710592">{{cite journal |author=Syrjälä H.|title=Peripheral blood leukocyte counts, erythrocyte sedimentation rate and C-reactive protein in tularemia caused by the type B strain of Francisella tularensis. |journal=Infection. |volume=14|issue=2 |pages=51-4 |year=1986|pmid 3710592|doi=|url=https://www.ncbi.nlm.nih.gov/pubmed?term=3710592}}</ref> <ref name="PMID286884">{{cite journal |author=Hall GW, Schwartz RP. |title=White blood cell count and differential in Rocky Mountain spotted fever. |journal=N C Med J. |volume=40|issue=4 |pages=212-4 |year=1979|pmid 286884|doi=|url=https://www.ncbi.nlm.nih.gov/pubmed?term=286884}}</ref>
-==Overview==
+[[Parasitic]] diseases with neutropenia include [[leishmaniasis]] with [[hemolysis]] and splenic sequestration and [[malaria]] due to hyperreactive [[malarial]] [[splenomegaly]] (HMS).<ref name="PMID4575057">{{cite journal |author=Dale DC, Wolff SM. |title=Studies of the neutropenia of acute malaria. |journal=Blood. |volume=41|issue=2 |pages=197-206 |year=1973|pmid 4575057|doi=|url=https://www.ncbi.nlm.nih.gov/pubmed?term=4575057}}</ref> [[Viral]] etiologies include [[HIV]], [[EBV]], [[CMV]], HHV-6, viral [[hepatitis]], [[dengue fever]], [[yellow fever]], [[measles]], [[varicella]], and [[rubella]].<ref name="PMID6318560">{{cite journal |author=Schooley RT, Densen P, Harmon D, Felsenstein D, Hirsch MS, Henle W, Weitzman S. |title=Antineutrophil antibodies in infectious mononucleosis. |journal=Am J Med. |volume=76|issue=1 |pages=85-90 |year=1984 |pmid 6318560|doi=|url=https://www.ncbi.nlm.nih.gov/pubmed?term=6318560}}</ref>
-Causes can be divided into the following groups:
-* Decreased production in the [[bone marrow]]:
+[[Immunodeficiencies]] are frequently associated with neutropenia (38% in [[Hyper IgM syndrome]], 12% in [[CVID]], and 7% in [[X-linked agammaglobulinemia]]) as are [[autoimmune disorders]] including up to 50% of patients with systemic [[lupus erythematosus]], yet with lower overall prevalence. While [[rheumatoid arthritis]] infrequently presents with neutropenia, severe neutropenia can develop in the setting of [[large granular lymphocyte]] (LGL) leukemia or [[Felty's syndrome]].<ref name="PMID6979979">{{cite journal |author=Bucknall RC, Davis P, Bacon PA, Jones JV |title=Neutropenia in rheumatoid arthritis: studies on possible contributing factors |journal=Ann Rheum Dis. |volume=41 |issue=3 |pages=242-7 |year=2009 |pmid=6979979 |doi=|url=https://www.ncbi.nlm.nih.gov/pubmed?term=6979979}}</ref>
-** [[Hereditary disorder]]s (e.g. congenital neutropenia, [[Cyclic neutropenia]])
-** [[Cancer]]
+Finally, nutritional deficiencies resulting in neutropenia are typically attributed to [[vitamin B12]], [[folate]], and [[copper]] and are related to inadequate dietary intake, [[pernicious anemia]], [[bariatric surgery]], and malabsorptive syndromes.
-** [[Drugs]](e.g. [[Albendazole]], [[Amlodipine and Benazepril]], [[Capecitabine]], [[caspofungin acetate]], [[Chlorpromazine]], [[Cyclophosphamide]], [[doxycycline]], [[Febuxostat]], [[Haloperidol]], [[Imatinib]], [[Interferon beta- 1a]], [[Interferon beta- 1b]], [[Metoclopramide]], [[Methimazole]], [[Mycophenolate]], [[Minocycline hydrochloride]], [[Olanzapine]], [[Prochlorperazine]], [[Rifaximin]], [[Sulindac]], [[Thalidomide]], [[Valganciclovir hydrochloride]], [[Zidovudine]])
-** [[Radiation]]
+===Life Threatening Causes===
-** [[cobalamin|Vitamin B<sub>12</sub>]] or [[folate]] deficiency.
+Life-threatening causes include conditions which may result in death or permanent disability within 24 hours if left untreated.
-* Increased destruction:
-** [[Aplastic anemia]]
+=== Common Causes ===
-** [[autoimmune disorder|Autoimmune]] neutropenia.
+* [[Aplastic anemia]]
-** [[Chemotherapy]]
+* [[Cancer]]
-* Marginalisation and sequestration:
+* [[List of chemotherapeutic agents#Cytotoxic Chemotherapy|Cytotoxic chemotherapy]]
-** [[dialysis|Hemodialysis]]
+* [[Hemodialysis]]
+* [[Medications]]<ref name="PMID17142169">{{cite journal |author=Andrès E, Zimmer J, Affenberger S, Federici L, Alt M, Maloisel F. |title=Idiosyncratic drug-induced agranulocytosis: Update of an old disorder. |journal=Eur J Intern Med. |volume=17|issue=8 |pages=529-35 |year=2006|pmid 17142169|doi=|url=https://www.ncbi.nlm.nih.gov/pubmed/17142169}}</ref>
+* [[Radiation therapy]]
+* [[avitaminosis|Vitamin deficiencies e.g. folate, Vitamin B12]]
+=== Causes by Organ System ===
+{|style="width:80%; height:100px" border="1"
+|style="height:100px"; style="width:25%" border="1" bgcolor="LightSteelBlue" | '''Cardiovascular'''
+|style="height:100px"; style="width:75%" border="1" bgcolor="Beige" | No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Chemical / poisoning'''
+|bgcolor="Beige"|[[Arsenic trioxide]], [[gold salts]], [[strontium|strontium-89]]
+|-
+|-bgcolor="LightSteelBlue"
+| '''Dermatologic'''
+|bgcolor="Beige"|[[Chediak-Higashi disease]], [[dyskeratosis congenita|dyskeratosis congenita, x-linked]], [[Elejalde syndrome ]], reticular dysgenesis, reticular dysplasia
+|-
+|-bgcolor="LightSteelBlue"
+| '''Drug Side Effect'''
+|bgcolor="Beige"| [[5-azacytidine]], [[acetophenazine]], [[aclarubicin]], [[actinomycin D]], [[acyclovir]], [[aflibercept]], [[albendazole]], [[alemtuzumab]], [[allopurinol]], [[amantadine]], [[amiloride]], [[aminoglutethimide]], [[aminoglutethimide]], [[aminopyrine]], [[amiodarone]],[[amodiaquine]], [[ampicillin]], [[amsacrine]], [[anakinra]], [[anidulafungin]], [[anti-thymocyte globulin]], [[antibiotics]], [[antipyrine]], [[aprepitant]], [[aripiprazole]], [[arsenic trioxide]], [[asenapine]], [[atazanavir]], [[atovaquone]], [[auranofin]], [[azacitidine]], [[azathioprine]], [[aztreonam]], [[barbiturates]], [[belinostat]], [[benazepril]], [[bendamustine]], [[bevacizumab]], [[blinatumomab]], [[boceprevir]], [[bortezomib]], [[bosutinib]], [[brentuximab]], [[busulfan]], [[cabazitaxel]], [[cabozantinib]], [[canakinumab]], [[candesartan]], [[capecitabine]], [[captopril]], [[carbimazole]], [[carboplatin]], [[carfilzomib]], [[carmustine]], [[cefaclor]], [[cefadroxil]], [[cefazolin]], [[cefepime]], [[cefixime]], [[cefoperazone]], [[cefotetan]], [[cefotiam]], [[cefoxitin]], [[ceftaroline]], [[ceftriaxone]], [[cefuroxime]], [[cephalexin]], [[cephapirin]], [[cephradine]], [[cetuximab]], [[chemotherapy]], [[chlorambucil]], [[chloramphenicol]], [[chloroquine]], [[chlorpromazine]], [[chlorthalidone]], [[cidofovir]], [[cilazapril]], [[cimetidine]], [[cisplatin]], [[cladribine]], [[clarithromycin]], [[clindamycin]], [[clofarabine]], [[clopidogrel]], [[clozapine]], [[colchicine]], [[crizotinib]], [[cromolyn]], [[cyclophosphamide]], [[cytarabine]], [[cytosine arabinoside]], [[dabrafenib]],[[dacarbazine]], [[daclatasvir]], [[dactinomycin]], [[dasatinib]], [[daunorubicin]], [[decitabine]], [[deferasirox]], [[deferiprone]], [[delavirdine]], [[desipramine]], [[dexrazoxane]], [[diatrizoate]], [[diazepam]], [[diazoxide]],  [[dicloxacillin]], [[Diethylpropion]][[diflunisal]], [[dipyrone]], [[docetaxel]], [[dolutegravir]], [[doripenem]], [[dothiepin]], [[doxorubicin]], [[doxycycline]],  [[efavirenz]], [[eflornithine]], [[elvitegravir]], [[enalapril]], [[enalaprilat]], [[enfuvirtide]], [[enzalutamide]], [[epirubicin]], [[eprosartan]], [[eribulin]], [[etanercept]], [[ethacrynic acid]], [[ethambutol]], [[ethosuximide]], [[ethotoin]], [[etodolac]], [[etoposide]], [[everolimus]], [[felbamate]], [[fentanyl]],  [[fidaxomicin]], [[flucytosine]], [[fludarabine]], [[fluorouracil]], [[fluoxetine]], [[fosamprenavir]], [[foscarnet]], [[fosinopril]], [[ganciclovir]], [[gefitinib]], [[gemcitabine]], [[gemifloxacin mesylate]], [[glyburide]], [[golimumab]], [[griseofulvin]], [[guanidinium]], [[haloperidol]], [[hydroxycarbamide]], [[hydroxyurea]], [[ibuprofen lysine]], [[ibritumomab tiuxetan]], [[ibrutinib]], [[ibuprofen]], [[idarubicin]], [[idelalisib]], [[iloperidone]], [[imatinib]], [[imipenem cilastatin]], [[indinavir]], [[indomethacin]], [[infliximab]], [[interferon alfa-2a]], [[interferon alfa-2b]], [[interferon alfacon-1]], [[interferon beta-1b]], [[irinotecan]], [[isoniazid]], [[isotretinoin]], [[itraconazole]], [[ixabepilone]], [[lamivudine]], [[lamotrigine]], [[lansoprazole]], [[lenalidomide]], [[levamisole]], [[levetiracetam]], [[levomepromazine]], [[lincomycin]], [[linezolid]], [[lisinopril]], [[loxapine]], [[lurasidone]], [[maprotiline]], [[maraviroc]], [[meclofenamate]], [[mercaptopurine]], [[meropenem]], [[mesalamine]], [[methazolamide]], [[methimazole]], [[methotrexate]], [[methyldopa]], [[metolazone]], [[mexiletine]], [[mianserin]], [[micafungin]], [[mifamurtide]], [[milnacipran]], [[minocycline]], [[mirtazapine]], [[mitotane]], [[mitoxantrone]], [[moexipril]], [[moxalactam]], [[mycophenolate]], [[mycophenolic acid]], [[nafcillin]], [[naproxen]], [[nefazodone]], [[nelarabine]], [[nelfinavir]], [[nevirapine]], [[nilotinib]], [[nilutamide]], [[norfloxacin]], [[nortriptyline]], [[obinutuzumab]], [[ofatumumab]], [[ofloxacin]], [[olanzapine]], [[olaparib]], [[olsalazine]],[[omacetaxine]], [[omeprazole]], [[oprelvekin]], [[oxacillin]], [[oxaliplatin]], [[paclitaxel]], [[palbociclib]], [[paliperidone]], [[panobinostat]], [[pantoprazole]], [[pazopanib]], [[peginterferon alfa-2a]], [[peginterferon alfa-2b]], [[pemetrexed]], [[penicillamine]], [[penicillin]], [[penicillin G]], [[pentamidine]], [[pentostatin]], [[peramivir]], [[perazine]], [[perindopril]], [[pertuzumab]], [[phenylbutazone]], [[phenytoin]],  [[piperacillin]], [[piperaquine]], [[pipothiazine]], [[piroxicam]], [[pixantrone]], [[pomalidomide]],  [[ponatinib]], [[posaconazole]], [[pralatrexate]], [[prednisone]], [[probenecid]], [[procainamide]], [[procarbazine]], [[prochlorperazine]], [[proguanil]], [[propylthiouracil]], [[pyrimethamine]], [[quetiapine]], [[quinapril]], [[quinidine]], [[quinine]], [[radium chloride]], [[raltitrexed]], [[ramipril]], [[ramucirumab]], [[ranitidine]], [[rasagiline]], [[rasburicase]], [[regorafenib]], [[remoxipride]], [[ribavirin]], [[rifabutin]], [[rifapentine]], [[rifaximin]], [[rilonacept]], [[riluzole]], [[risperidone]], [[ritodrine]], [[ritonavir]], [[rituximab]], [[romidepsin]], [[ruxolitinib]], [[saquinavir]], [[satraplatin]], [[secukinumab]], [[sirolimus]], [[sodium aurothiomalate]], [[sofosbuvir]], [[sorafenib]], [[stavudine]], [[stiripentol]], [[succimer]], [[Sulfacetamide]], [[Sulfamethoxazole/Trimethoprim (oral)]],
+[[sulfasalazine]], [[sulfonamide]], [[sulindac]], [[sunitinib]], [[suramin]], [[tacrolimus]], [[tedizolid]], [[teicoplanin]], [[temozolomide]], [[temsirolimus]], [[teniposide]], [[tenofovir]], [[terbinafine]], [[teriflunomide]], [[thalidomide]], [[thiothixene]], [[ticarcillin]], [[ticlopidine]], [[tipranavir]], [[tocilizumab]], [[tofacitinib]], [[tolazamide]], [[tolmetin]], [[topotecan]], [[tositumomab]], [[trabectedin]], [[trametinib]], [[trandolapril]], [[trastuzumab]], [[trimethadione]], [[trimethoprim]], [[trimetrexate]], [[valganciclovir]], [[valproic acid]], [[valrubicin]], [[valsartan]], [[vancomycin]], [[vandetanib]], [[vesnarinone]], [[vincristine]], [[vindesine]], [[vinflunine]], [[vinorelbine]], [[zidovudine]], [[zileuton]], [[ziprasidone]], [[ziv-aflibercept]], [[zoledronic acid]]
+|-
+|-bgcolor="LightSteelBlue"
+| '''Ear Nose Throat'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Endocrine'''
+|bgcolor="Beige"|[[Hyperthyroidism]]
+|-
+|-bgcolor="LightSteelBlue"
+| '''Environmental'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Gastroenterologic'''
+|bgcolor="Beige"|[[Glycogen storage disorder]], [[hypersplenism]], [[Shwachman-Diamond syndrome]]
+|-
+|-bgcolor="LightSteelBlue"
+| '''Genetic'''
+|bgcolor="Beige"|[[Barth syndrome]], [[cartilage-hair hypoplasia]], [[Chediak-Higashi disease]], [[Cohen syndrome]], [[Dubowitz syndrome]], [[Elejalde syndrome ]], [[familial histiocytic reticulosis]], [[Fanconi syndrome]], [[fumarate hydratase deficiency]], [[Griscelli syndrome|Griscelli syndrome type 1]], [[methylmalonic aciduria]], [[myelokathexis]], [[propionic acidemia]], [[propionyl-CoA carboxylase|propionyl-CoA carboxylase deficiency PCCA type]], [[Shwachman-Diamond syndrome]], [[WHIM syndrome]]
+|-
+|-bgcolor="LightSteelBlue"
+| '''Hematologic'''
+|bgcolor="Beige"|Alloimmune neonatal neutropenia, alloimmune neutropenia in infancy, [[aplastic anemia]], [[neutropenia|autoimmune neutropenia]], [[chronic lymphocytic leukemia]], [[cyclical neutropenia]], [[familial histiocytic reticulosis]], [[Hermansky-Pudlak syndrome]], [[histiocytosis X]], [[hypersplenism]], [[Kostmann disease]], [[myelodysplastic syndrome]], [[myelofibrosis]], [[pancytopenia]], [[paroxysmal nocturnal haemoglobinuria]], [[Shwachman-Diamond syndrome]], [[x-linked agammaglobulinemia]]
+|-
+|-bgcolor="LightSteelBlue"
+| '''Iatrogenic'''
+|bgcolor="Beige"| [[Hemodialysis]], [[radiation therapy]]
+|-
+|-bgcolor="LightSteelBlue"
+| '''Infectious Disease'''
+|bgcolor="Beige"|[[Brucellosis]], [[cytomegalovirus]], [[dengue]], [[Epstein-Barr virus]], [[hepatitis A]], [[hepatitis B]], [[hepatitis C]], [[hepatitis]], [[human granulocytic ehrlichiosis]], [[human immunodeficiency virus]], [[ehrlichiosis|human monocytotropic ehrlichiosis]], [[kala azar]], [[Kostmann disease]], [[lassa fever]], [[Lyme disease]], [[malaria]], [[measles]], [[rickettsiae]], [[rickettsial infections]], [[rocky mountain spotted fever]], [[rubella]], [[salmonella infection]], [[sepsis]], [[severe acute respiratory syndrome]], [[shigellosis]], [[tuberculosis]], [[tularemia]], [[varicella]], [[visceral leishmaniasis]], [[WHIM syndrome]]
+|-
+|-bgcolor="LightSteelBlue"
+| '''Musculoskeletal / Ortho'''
+|bgcolor="Beige"|[[Cartilage-hair hypoplasia]], [[metaphyseal chondrodysplasia, Mckusick type]]
+|-
+|-bgcolor="LightSteelBlue"
+| '''Neurologic'''
+|bgcolor="Beige"|[[Fumarate hydratase deficiency]]
+|-
+|-bgcolor="LightSteelBlue"
+| '''Nutritional / Metabolic'''
+|bgcolor="Beige"|[[Copper deficiency]], [[glutathione synthase|glutathione synthase deficiency]], [[glycogen storage disorder]], [[glycogen storage disease type I|glycogenosis type 1b]], [[orotic aciduria|hereditary orotic aciduria]], [[isovaleric acidemia]], [[methylmalonic aciduria]], [[propionic acidemia]], [[propionyl-CoA carboxylase|propionyl-CoA carboxylase deficiency PCCA type]], [[vitamin deficiencies]]
+|-
+|-bgcolor="LightSteelBlue"
+| '''Obstetric/Gynecologic'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Oncologic'''
+|bgcolor="Beige"|[[Chronic lymphocytic leukemia]], [[hairy cell leukemia]], [[histiocytosis X]], [[leukemia]], [[myelodysplastic syndrome]], [[myelofibrosis]]
+|-
+|-bgcolor="LightSteelBlue"
+| '''Opthalmologic'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Overdose / Toxicity'''
+|bgcolor="Beige"|[[Alcoholism]]
+|-
+|-bgcolor="LightSteelBlue"
+| '''Psychiatric'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Pulmonary'''
+|bgcolor="Beige"|[[Severe acute respiratory syndrome]]
+|-
+|-bgcolor="LightSteelBlue"
+| '''Renal / Electrolyte'''
+|bgcolor="Beige"|[[Fanconi syndrome]]
+|-
+|-bgcolor="LightSteelBlue"
+| '''Rheum / Immune / Allergy'''
+|bgcolor="Beige"| Alloimmune neonatal neutropenia, alloimmune neutropenia in infancy, [[autoimmune lymphoproliferative syndrome type 1]], [[autoimmune lymphoproliferative syndrome type 2]], [[neutropenia|autoimmune neutropenia]], [[common variable immune deficiency]], [[Felty's syndrome]], [[histiocytosis X]], [[hyper-immunoglobulin M syndrome]], [[lupus]], [[rheumatoid arthritis]], [[neutropenia|secondary autoimmune neutropenia]], [[WHIM syndrome]], [[x-linked agammaglobulinemia]], [[x-linked hyperimmunoglobulin M syndrome]]
+|-
+|-bgcolor="LightSteelBlue"
+| '''Sexual'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Trauma'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Urologic'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Dental'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Miscellaneous'''
+|bgcolor="Beige"| No underlying causes
+|-
+|}
+=== Causes in Alphabetical Order ===
+{{columns-list|
+* [[5-azacytidine]]
+* [[Acetophenazine]]
+* [[Aclarubicin]]
+* [[Actinomycin D]]
+* [[Acyclovir]]
+* [[Aflibercept]]
+* [[Albendazole]]
+* [[Alcoholism]]
+* [[Alemtuzumab]]
+* Alloimmune neonatal neutropenia
+* Alloimmune neutropenia in infancy
+* [[Allopurinol]]
+* [[Amantadine]]
+* [[Amiloride]]
+* [[Aminoglutethimide]]
+* [[Aminopyrine]]
+* [[Amiodarone]]
+* [[Amitriptyline]]
+* [[Amodiaquine]]
+* [[Ampicillin]]
+* [[Amsacrine]]
+* [[Anakinra]]
+* [[Anidulafungin]]
+* [[Antibiotics]]
+* [[Antipyrine]]
+* [[Anti-thymocyte globulin]]
+* [[Aplastic anemia]]
+* [[Aprepitant]]
+* [[Aripiprazole]]
+* [[Arsenic trioxide]]
+* [[Asenapine]]
+* [[Atazanavir]]
+* [[Atovaquone]]
+* [[Auranofin]]
+* [[Autoimmune lymphoproliferative syndrome type 1]]
+* [[Autoimmune lymphoproliferative syndrome type 2]]
+* [[neutropenia|Autoimmune neutropenia]]
+* [[Azacitidine]]
+* [[Azathioprine]]
+* [[Aztreonam]]
+* [[Barbiturates]]
+* [[Barth syndrome]]
+* [[Belinostat]]
+* [[Benazepril]]
+* [[Bendamustine]]
+* [[Bevacizumab]]
+* [[Blinatumomab]]
+* [[Boceprevir]]
+* [[Bortezomib]]
+* [[Bosutinib]]
+* [[Brentuximab vedotin]]
+* [[Brucellosis]]
+* [[Busulfan]]
+* [[Cabazitaxel]]
+* [[Cabozantinib]]
+* [[Canakinumab]]
+* [[Candesartan]]
+* [[Capecitabine]]
+* [[Captopril]]
+* [[Carbimazole]]
+* [[Carboplatin]]
+* [[Carfilzomib]]
+* [[Carmustine]]
+* [[Cartilage-hair hypoplasia]]
+* [[Caspofungin]]
+* [[Cefaclor]]
+* [[Cefadroxil]]
+* [[Cefazolin]]
+* [[Cefepime]]
+* [[Cefixime]]
+* [[Cefoperazone]]
+* [[Cefotetan]]
+* [[Cefotiam]]
+* [[Cefoxitin]]
+* [[Ceftaroline]]
+* [[Ceftriaxone]]
+* [[Cefuroxime]]
+* [[Cephalexin]]
+* [[Cephapirin]]
+* [[Cephradine]]
+* [[Cetuximab]]
+* [[Chediak-Higashi disease]]
+* [[Chemotherapy]]
+* [[Chlorambucil]]
+* [[Chloroquine]]
+* [[Chlorpromazine]]
+* [[Chlorthalidone]]
+* [[Chronic lymphocytic leukemia]]
+* [[Cidofovir]]
+* [[Cilazapril]]
+* [[Cimetidine]]
+* [[Cisplatin]]
+* [[Cladribine]]
+* [[Clarithromycin]]
+* [[Clindamycin]]
+* [[Clofarabine]]
+* [[Clofarabine]]
+* [[Clopidogrel]]
+* [[Clozapine]]
+* [[Cohen syndrome]]
+* [[Colchicine]]
+* [[Common variable immune deficiency]]
+* [[Copper deficiency]]
+* [[Crizotinib]]
+* [[Cyclical neutropenia]]
+* [[Cyclophosphamide]]
+* [[Cytarabine]]
+* [[Cytomegalovirus]]
+* [[Cytosine arabinoside]]
+* [[Dabrafenib]]
+* [[Dacarbazine]]
+* [[Daclatasvir]]
+* [[Dactinomycin]]
+* [[Dasatinib]]
+* [[Daunorubicin]]
+* [[Decitabine]]
+* [[Deferasirox]]
+* [[Deferiprone]]
+* [[Delavirdine]]
+* [[Dengue]]
+* [[Desipramine]]
+* [[Dexrazoxane]]
+* [[Diatrizoate]]
+* [[Diazepam]]
+* [[Diazoxide]]
+* [[Dicloxacillin]]
+* [[Diflunisal]]
+* [[Dipyrone]]
+* [[Docetaxel]]
+* [[Dolutegravir]]
+* [[Doripenem]]
+* [[Dothiepin]]
+* [[Doxorubicin]]
+* [[Doxycycline]]
+* [[Dubowitz syndrome]]
+* [[dyskeratosis congenita|Dyskeratosis congenita, X-linked]]
+* [[Efavirenz]]
+* [[Eflornithine]]
+* [[Elejalde syndrome]]
+* [[Elvitegravir]]
+* [[Enalapril]]
+* [[Enalaprilat]]
+* [[Enfuvirtide]]
+* [[Enzalutamide]]
+* [[Epirubicin]]
+* [[Eprosartan]]
+* [[Epstein-Barr virus]]
+* [[Eribulin]]
+* [[Etanercept]]
+* [[Ethacrynic acid]]
+* [[Ethambutol]]
+* [[Ethosuximide]]
+* [[Ethotoin]]
+* [[Etodolac]]
+* [[Etoposide]]
+* [[Everolimus]]
+* [[Familial histiocytic reticulosis]]
+* [[Fanconi syndrome]]
+* [[Felty's syndrome]]
+* [[Fentanyl]]
+* [[Fidaxomicin]]
+* [[Flucytosine]]
+* [[Fludarabine]]
+* [[Fluorouracil]]
+* [[Fluoxetine]]
+* [[Fosamprenavir]]
+* [[Foscarnet]]
+* [[Fosinopril]]
+* [[Fumarate hydratase deficiency]]
+* [[Ganciclovir]]
+* [[Gefitinib]]
+* [[Gemcitabine]]
+* [[Gemtuzumab ozogamicin]]
+* [[glutathione synthase|Glutathione synthase deficiency]]
+* [[Glyburide]]
+* [[Glycogen storage disorder]]
+* [[glycogen storage disease type I|Glycogenosis type 1b]]
+* [[Gold salts]]
+* [[Golimumab]]
+* [[Griscelli syndrome|Griscelli syndrome type 1]]
+* [[Griseofulvin]]
+* [[Guanidinium]]
+* [[Hairy cell leukemia]]
+* [[Haloperidol]]
+* [[Hemodialysis]]
+* [[Hepatitis]]
+* [[Hepatitis A]]
+* [[Hepatitis B]]
+* [[Hepatitis C]]
+* [[orotic aciduria|Hereditary orotic aciduria]]
+* [[Hermansky-Pudlak syndrome]]
+* [[Histiocytosis X]]
+* [[Human granulocytic ehrlichiosis]]
+* [[Human immunodeficiency virus]]
+* [[ehrlichiosis|Human monocytotropic ehrlichiosis]]
+* [[Hydroxycarbamide]]
+* [[Hydroxyurea]]
+* [[Hyper-immunoglobulin M syndrome]]
+* [[Hypersplenism]]
+* [[Hyperthyroidism]]
+* [[Ibritumomab]]
+* [[Ibrutinib]]
+* [[Ibuprofen]]
+* [[Ibuprofen lysine]]
+* [[Idarubicin]]
+* [[Idelalisib]]
+* [[Iloperidone]]
+* [[Imatinib]]
+* [[Imipenem cilastatin]]
+* [[Indinavir]]
+* [[Indomethacin]]
+* [[Infliximab]]
+* [[Interferon alfa-2a]]
+* [[Interferon alfa-2b]]
+* [[Interferon alfacon-1]]
+* [[Interferon beta-1b]]
+* [[Irinotecan]]
+* [[Isoniazid]]
+* [[Isotretinoin]]
+* [[Isovaleric acidemia]]
+* [[Itraconazole]]
+* [[Ixabepilone]]
+* [[Kala azar]]
+* [[Kostmann disease]]
+* [[Lamivudine]]
+* [[Lamotrigine]]
+* [[Lansoprazole]]
+* [[Lassa fever]]
+* [[Lenalidomide]]
+* [[Leukemia]]
+* [[Levamisole]]
+* [[Levetiracetam]]
+* [[Levomepromazine]]
+* [[Lincomycin]]
+* [[Linezolid]]
+* [[Lisinopril]]
+* [[Loxapine]]
+* [[Lupus]]
+* [[Lurasidone]]
+* [[Lyme disease]]
+* [[Malaria]]
+* [[Maprotiline]]
+* [[Maraviroc]]
+* [[Measles]]
+* [[Meclofenamate]]
+* [[Mercaptopurine]]
+* [[Meropenem]]
+* [[Mesalamine]]
+* [[Metaphyseal chondrodysplasia, Mckusick type]]
+* [[Methazolamide]]
+* [[Methimazole]]
+* [[Methotrexate]]
+* [[Methyldopa]]
+* [[Methylmalonic aciduria]]
+* [[Metolazone]]
+* [[Mexiletine]]
+* [[Mianserin]]
+* [[Micafungin]]
+* [[Mifamurtide]]
+* [[Milnacipran hydrochloride|Milnacipran]]
+* [[Minocycline]]
+* [[Mirtazapine]]
+* [[Mitotane]]
+* [[Mitoxantrone]]
+* [[Moexipril]]
+* [[Moxalactam]]
+* [[Mycophenolate]]
+* [[Mycophenolic acid]]
+* [[Myelodysplastic syndrome]]
+* [[Myelofibrosis]]
+* [[Myelokathexis]]
+* [[Nafcillin]]
+* [[Naproxen]]
+* [[Nefazodone]]
+* [[Nelarabine]]
+* [[Nelfinavir]]
+* [[Nevirapine]]
+* [[Nilotinib]]
+* [[Nilutamide]]
+* [[Norfloxacin]]
+* [[Nortriptyline]]
+* [[Obinutuzumab]]
+* [[Ofatumumab]]
+* [[Ofloxacin]]
+* [[Olanzapine]]
+* [[Olaparib]]
+* [[Olsalazine]]
+* [[Omacetaxine]]
+* [[Omeprazole]]
+* [[Oprelvekin]]
+* [[Oxacillin]]
+* [[Oxaliplatin]]
+* [[Paclitaxel]]
+* [[Palbociclib]]
+* [[Paliperidone]]
+* [[Pancytopenia]]
+* [[Panobinostat]]
+* [[Pantoprazole]]
+* [[Paroxysmal nocturnal haemoglobinuria]]
+* [[Pazopanib]]
+* [[Peginterferon alfa-2a]]
+* [[Peginterferon alfa-2b]]
+* [[Pemetrexed]]
+* [[Penicillamine]]
+* [[Penicillin]]
+* [[Penicillin G]]
+* [[Pentamidine]]
+* [[Pentostatin]]
+* [[Peramivir]]
+* [[Perazine]]
+* [[Perindopril]]
+* [[Pertuzumab]]
+* [[Phenylbutazone]]
+* [[Phenytoin]]
+* [[Piperacillin]]
+* [[Piperaquine]]
+* [[Pipothiazine]]
+* [[Piroxicam]]
+* [[Pixantrone]]
+* [[Pomalidomide]]
+* [[Ponatinib]]
+* [[Posaconazole]]
+* [[Pralatrexate]]
+* [[Prednisone]]
+* [[Probenecid]]
+* [[Procainamide]]
+* [[Procarbazine]]
+* [[Prochlorperazine]]
+* [[Proguanil]]
+* [[Propionic acidemia]]
+* [[propionyl-CoA carboxylase deficiency|Propionyl-CoA carboxylase deficiency PCCA type]]
+* [[Propylthiouracil]]
+* [[Pyrimethamine]]
+* [[Quetiapine]]
+* [[Quinapril]]
+* [[Quinidine]]
+* [[Quinine]]
+* [[Radiation therapy]]
+* [[Radium chloride]]
+* [[Raltitrexed]]
+* [[Ramipril]]
+* [[Ramucirumab]]
+* [[Ranitidine]]
+* [[Rasagiline]]
+* [[Rasburicase]]
+* [[Regorafenib]]
+* [[Remoxipride]]
+* [[Reticular dysgenesis]]
+* [[Reticular dysplasia]]
+* [[Rheumatoid arthritis]]
+* [[Ribavirin]]
+* [[Rickettsiae]]
+* [[Rickettsial infections]]
+* [[Rifabutin]]
+* [[Rifapentine]]
+* [[Rifaximin]]
+* [[Rilonacept]]
+* [[Riluzole]]
+* [[Risperidone]]
+* [[Ritodrine]]
+* [[Ritonavir]]
+* [[Rituximab]]
+* [[Rocky mountain spotted fever]]
+* [[Romidepsin]]
+* [[Rubella]]
+* [[Ruxolitinib]]
+* [[Salmonella infection]]
+* [[Saquinavir]]
+* [[Satraplatin]]
+* [[neutropenia|Secondary autoimmune neutropenia]]
+* [[Secukinumab]]
+* [[Sepsis]]
+* [[Severe acute respiratory syndrome]]
+* [[Shigellosis]]
+* [[Shwachman-Diamond syndrome]]
+* [[Sirolimus]]
+* [[Sodium aurothiomalate]]
+* [[Sofosbuvir]]
+* [[Sorafenib]]
+* [[Stavudine]]
+* [[Stiripentol]]
+* [[Strontium-89]]
+* [[Succimer]]
+* [[Sulfasalazine]]
+* [[Sulfonamide]]
+* [[Sulindac]]
+* [[Sunitinib]]
+* [[Suramin]]
+* [[Tacrolimus]]
+* [[Tedizolid]]
+* [[Teicoplanin]]
+* [[Temozolomide]]
+* [[Temsirolimus]]
+* [[Teniposide]]
+* [[Tenofovir]]
+* [[Terbinafine]]
+* [[Teriflunomide]]
+* [[Thalidomide]]
+* [[Thiothixene]]
+* [[Ticarcillin]]
+* [[Ticlopidine]]
+* [[Tipranavir]]
+* [[Tocilizumab]]
+* [[Tofacitinib]]
+* [[Tolazamide]]
+* [[Tolmetin]]
+* [[Topotecan]]
+* [[Tositumomab]]
+* [[Trabectedin]]
+* [[Trametinib]]
+* [[Trandolapril]]
+* [[Trastuzumab]]
+* [[Trimethadione]]
+* [[Trimethoprim]]
+* [[Trimetrexate]]
+* [[Tuberculosis]]
+* [[Tularemia]]
+* [[Valganciclovir]]
+* [[Valproic acid]]
+* [[Valrubicin]]
+* [[Valsartan]]
+* [[Vancomycin]]
+* [[Vandetanib]]
+* [[Varicella]]
+* [[Vesnarinone]]
+* [[Vincristine]]
+* [[Vindesine]]
+* [[Vinflunine]]
+* [[Vinorelbine]]
+* [[Visceral leishmaniasis]]
+* [[Vitamin deficiencies]]
+* [[WHIM syndrome]]
+* [[X-linked agammaglobulinemia]]
+* [[X-linked hyperimmunoglobulin M syndrome]]
+* [[Zidovudine]]
+* [[Zileuton]]
+* [[Ziprasidone]]
+* [[ziv-aflibercept]]
+* [[Zoledronic acid]]
+}}
 ==References==
 {{Reflist|2}}
-[[Category:Disease]]
+[[Category:Crowdiagnosis]]
-[[Category:Hematology]]
-[[Category:Overview complete]]
 {{WH}}
 {{WS}}