Promethazine (oral)
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Vignesh Ponnusamy, M.B.B.S. [2]
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Black Box Warning
WARNING
See full prescribing information for complete Boxed Warning.
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Overview
Promethazine (oral) is a phenothiazine derivative that is FDA approved for the {{{indicationType}}} of perennial and seasonal allergic rhinitis, vasomotor rhinitis, allergic conjunctivitis, mild, uncomplicated allergic skin manifestations of urticaria and angiodema, amelioration of allergic reactions to blood or plasma, dermographism, preoperative, postoperative, or obstetric sedation, prevention and control of nausea and vomiting associated with certain types of anesthesia and surgery, adjunctive to meperidine or other analgesics for control of postoperative pain, motion sickness, antiemetic therapy in postoperative patients. There is a Black Box Warning for this drug as shown here. Common adverse reactions include .
Adult Indications and Dosage
FDA-Labeled Indications and Dosage (Adult)
Condition1
- Dosing Information
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Condition3
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Off-Label Use and Dosage (Adult)
Guideline-Supported Use
Condition1
- Developed by:
- Class of Recommendation:
- Strength of Evidence:
- Dosing Information
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Condition2
There is limited information regarding Off-Label Guideline-Supported Use of Promethazine (oral) in adult patients.
Non–Guideline-Supported Use
Condition1
- Dosing Information
- Dosage
Condition2
There is limited information regarding Off-Label Non–Guideline-Supported Use of Promethazine (oral) in adult patients.
Pediatric Indications and Dosage
FDA-Labeled Indications and Dosage (Pediatric)
Condition1
- Dosing Information
- Dosage
Condition2
There is limited information regarding FDA-Labeled Use of Promethazine (oral) in pediatric patients.
Off-Label Use and Dosage (Pediatric)
Guideline-Supported Use
Condition1
- Developed by:
- Class of Recommendation:
- Strength of Evidence:
- Dosing Information
- Dosage
Condition2
There is limited information regarding Off-Label Guideline-Supported Use of Promethazine (oral) in pediatric patients.
Non–Guideline-Supported Use
Condition1
- Dosing Information
- Dosage
Condition2
There is limited information regarding Off-Label Non–Guideline-Supported Use of Promethazine (oral) in pediatric patients.
Contraindications
- Promethazine hydrochloride tablets are contraindicated for use in pediatric patients less than two years of age.
- Promethazine hydrochloride tablets are contraindicated in comatose states, and in individuals known to be hypersensitive or to have had an idiosyncratic reaction to promethazine or to other phenothiazines.
- Antihistamines are contraindicated for use in the treatment of lower respiratory tract symptoms including asthma.
Warnings
WARNING
See full prescribing information for complete Boxed Warning.
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- CNS Depression
- Promethazine HCl tablets may impair the mental and/or physical abilities required for the performance of potentially hazardous tasks, such as driving a vehicle or operating machinery. The impairment may be amplified by concomitant use of other central-nervous-system depressants such as alcohol, sedatives/hypnotics (including barbiturates), narcotics, narcotic analgesics, general anesthetics, tricyclic antidepressants, and tranquilizers; therefore, such agents should either be eliminated or given in reduced dosage in the presence of promethazine HCl (see PRECAUTIONS: Information for Patients and Drug Interactions).
- Respiratory Depression
- Promethazine HCl tablets may lead to potentially fatal respiratory depression.
- Use of promethazine HCl tablets in patients with compromised respiratory function (e.g., COPD, sleep apnea) should be avoided.
- Lower Seizure Threshold
- Promethazine HCl tablets may lower seizure threshold. It should be used with caution in persons with seizure disorders or in persons who are using concomitant medications, such as narcotics or local anesthetics, which may also affect seizure threshold.
- Bone-Marrow Depression
- Promethazine HCl tablets should be used with caution in patients with bone-marrow depression. Leukopenia and agranulocytosis have been reported, usually when promethazine HCl has been used in association with other known marrow-toxic agents.
- Neuroleptic Malignant Syndrome
- A potentially fatal symptom complex sometimes referred to as Neuroleptic Malignant Syndrome (NMS) has been reported in association with promethazine HCl alone or in combination with antipsychotic drugs. Clinical manifestations of NMS are hyperpyrexia, muscle rigidity, altered mental status and evidence of autonomic instability (irregular pulse or blood pressure, tachycardia, diaphoresis and cardiac dysrhythmias).
- The diagnostic evaluation of patients with this syndrome is complicated. In arriving at a diagnosis, it is important to identify cases where the clinical presentation includes both serious medical illness (e.g., pneumonia, systemic infection, etc.) and untreated or inadequately treated extrapyramidal signs and symptoms (EPS). Other important considerations in the differential diagnosis include central anticholinergic toxicity, heat stroke, drug fever and primary central nervous system (CNS) pathology.
- The management of NMS should include 1) immediate discontinuation of promethazine HCl, antipsychotic drugs, if any, and other drugs not essential to concurrent therapy, 2) intensive symptomatic treatment and medical monitoring, and 3) treatment of any concomitant serious medical problems for which specific treatments are available. There is no general agreement about specific pharmacological treatment regimens for uncomplicated NMS.
- Since recurrences of NMS have been reported with phenothiazines, the reintroduction of promethazine HCl should be carefully considered.
- Use in Pediatric Patients
- Promethazine Hcl tablets are contraindicated for the use in pediatric patients less than two years of age.
- Caution should be exercised when administering promethazine hcl tablets to pediatric patients 2 years of age and older because of the potential for fatal respiratory depression. Respiratory depression and apnea,sometimes associated with death, are strongly associated with promethazine products and are not directly related to individualized weight-based dosing, which might otherwise permit safe administration, concomitant administration of promethazine products with other respiratory depressants has an association with respiratory depression, and sometimes death, in pediatric patients.
- Antiemetics are not recommended for treatment of uncomplicated vomiting in pediatric patients, and their use should be limited to prolonged vomiting of known etiology. The extrapyramidal symptoms which can occur secondary to promethazine hcl tablets administration may be confused with the CNS signs of undiagnosed primary disease, e.g., encephalopathy or reye's syndrome. The use of promethazine hcl tablets should be avoided in pediatric patients whose signs and symptoms may suggest Reye's syndrome or other hepatic diseases.
- Excessively large dosages of antihistamines, including promethazine HCl tablets in pediatric patients may cause sudden death. Hallucinations and convulsions have occurred with therapeutic doses and overdoses of promethazine HCl in pediatric patients. In pediatric patients who are acutely ill associated with dehydration, there is an increased susceptibility to dystonias with the use of promethazine HCl.
- Other Considerations
- Administration of promethazine HCl has been associated with reported cholestatic jaundice.
Precautions
- Drugs having anticholinergic properties should be used with caution in patients with narrow-angle glaucoma, prostatic hypertrophy, stenosing peptic ulcer, pyloroduodenal obstruction, and bladder-neck obstruction.
- Promethazine HCl tablets should be used cautiously in persons with cardiovascular disease or with impairment of liver function.
Adverse Reactions
Clinical Trials Experience
There is limited information regarding Clinical Trial Experience of Promethazine (oral) in the drug label.
Body as a Whole
Cardiovascular
Digestive
Endocrine
Hematologic and Lymphatic
Metabolic and Nutritional
Musculoskeletal
Neurologic
Respiratory
Skin and Hypersensitivy Reactions
Special Senses
Urogenital
Miscellaneous
Postmarketing Experience
There is limited information regarding Postmarketing Experience of Promethazine (oral) in the drug label.
Body as a Whole
Cardiovascular
Digestive
Endocrine
Hematologic and Lymphatic
Metabolic and Nutritional
Musculoskeletal
Neurologic
Respiratory
Skin and Hypersensitivy Reactions
Special Senses
Urogenital
Miscellaneous
Drug Interactions
- Drug
- Description
Use in Specific Populations
Pregnancy
- Pregnancy Category
- Australian Drug Evaluation Committee (ADEC) Pregnancy Category
There is no Australian Drug Evaluation Committee (ADEC) guidance on usage of Promethazine (oral) in women who are pregnant.
Labor and Delivery
There is no FDA guidance on use of Promethazine (oral) during labor and delivery.
Nursing Mothers
There is no FDA guidance on the use of Promethazine (oral) with respect to nursing mothers.
Pediatric Use
There is no FDA guidance on the use of Promethazine (oral) with respect to pediatric patients.
Geriatic Use
There is no FDA guidance on the use of Promethazine (oral) with respect to geriatric patients.
Gender
There is no FDA guidance on the use of Promethazine (oral) with respect to specific gender populations.
Race
There is no FDA guidance on the use of Promethazine (oral) with respect to specific racial populations.
Renal Impairment
There is no FDA guidance on the use of Promethazine (oral) in patients with renal impairment.
Hepatic Impairment
There is no FDA guidance on the use of Promethazine (oral) in patients with hepatic impairment.
Females of Reproductive Potential and Males
There is no FDA guidance on the use of Promethazine (oral) in women of reproductive potentials and males.
Immunocompromised Patients
There is no FDA guidance one the use of Promethazine (oral) in patients who are immunocompromised.
Administration and Monitoring
Administration
- Oral
- Intravenous
Monitoring
There is limited information regarding Monitoring of Promethazine (oral) in the drug label.
- Description
IV Compatibility
There is limited information regarding IV Compatibility of Promethazine (oral) in the drug label.
Overdosage
Acute Overdose
Signs and Symptoms
- Description
Management
- Description
Chronic Overdose
There is limited information regarding Chronic Overdose of Promethazine (oral) in the drug label.
Pharmacology
There is limited information regarding Promethazine (oral) Pharmacology in the drug label.
Mechanism of Action
Structure
Pharmacodynamics
There is limited information regarding Pharmacodynamics of Promethazine (oral) in the drug label.
Pharmacokinetics
There is limited information regarding Pharmacokinetics of Promethazine (oral) in the drug label.
Nonclinical Toxicology
There is limited information regarding Nonclinical Toxicology of Promethazine (oral) in the drug label.
Clinical Studies
There is limited information regarding Clinical Studies of Promethazine (oral) in the drug label.
How Supplied
Storage
There is limited information regarding Promethazine (oral) Storage in the drug label.
Images
Drug Images
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Package and Label Display Panel
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Patient Counseling Information
There is limited information regarding Patient Counseling Information of Promethazine (oral) in the drug label.
Precautions with Alcohol
- Alcohol-Promethazine (oral) interaction has not been established. Talk to your doctor about the effects of taking alcohol with this medication.
Brand Names
- ®[1]
Look-Alike Drug Names
- A® — B®[2]
Drug Shortage Status
Price
References
The contents of this FDA label are provided by the National Library of Medicine.
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