Tromethamine

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Tromethamine
Adult Indications & Dosage
Pediatric Indications & Dosage
Contraindications
Warnings & Precautions
Adverse Reactions
Drug Interactions
Use in Specific Populations
Administration & Monitoring
Overdosage
Pharmacology
Clinical Studies
How Supplied
Images
Patient Counseling Information
Precautions with Alcohol
Brand Names
Look-Alike Names

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];

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Overview

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Adult Indications and Dosage

FDA-Labeled Indications and Dosage (Adult)

Indications

  • Tham Solution (tromethamine injection) is indicated for the prevention and correction of metabolic acidosis. In the following conditions it may help to sustain vital functions and thus provide time for treatment of the primary disease:

Metabolic Acidosis Associated with Cardiac Bypass Surgery.

  • Tham Solution has been found to be primarily beneficial in correcting metabolic acidosis which may occur during or immediately following cardiac bypass surgical procedures.

Correction of Acidity of ACD Blood in Cardiac Bypass Surgery.

  • It is well known that ACD blood is acidic and becomes more acidic on storage. Tromethamine effectively corrects this acidity. Tham Solution may be added directly to the blood used to prime the pump-oxygenator. When ACD blood is brought to a normal pH range the patient is spared an initial acid load. Additional tromethamine may be indicated during cardiac bypass surgery should metabolic acidosis appear.

Metabolic Acidosis Associated with Cardiac Arrest.

  • Acidosis is nearly always one of the consequences of cardiac arrest and, in some instances, may even be a causative factor in arrest. It is important therefore, that the correction of acidosis should be started promptly with other resuscitative efforts. By correcting acidosis, Tham Solution (tromethamine injection) has caused the arrested heart to respond to resuscitative efforts after standard methods alone had failed. In these cases, tromethamine was given intraventricularly. It is to be noted, however, that such precariously ill patients often have died subsequently of causes unrelated to the administration of tromethamine. With administration by the peripheral venous route, metabolic acidosis has been corrected in a majority of patients. The success in reinstitution of cardiac rhythm by this means probably has not been of the same order of magnitude as with the intraventricular route.

Off-Label Use and Dosage (Adult)

Guideline-Supported Use

  • There is limited information regarding Off-Label Guideline-Supported Use of Tromethamine in adult patients.

Non–Guideline-Supported Use

  • There is limited information regarding Off-Label Non–Guideline-Supported Use of Tromethamine in adult patients.

Pediatric Indications and Dosage

FDA-Labeled Indications and Dosage (Pediatric)

  • There is limited information regarding FDA-Labeled Use of Tromethamine in pediatric patients.

Off-Label Use and Dosage (Pediatric)

Guideline-Supported Use

  • There is limited information regarding Off-Label Guideline-Supported Use of Tromethamine in pediatric patients.

Non–Guideline-Supported Use

  • There is limited information regarding Off-Label Non–Guideline-Supported Use of Tromethamine in pediatric patients.

Contraindications

  • Tham Solution (tromethamine injection) is contraindicated in uremia and anuria. In neonates it is also contraindicated in chronic respiratory acidosis and salicylate intoxication.

Warnings

  • Large doses of Tham Solution may depress ventilation, as a result of increased blood pH and reduced CO2 concentration. Thus, dosage should be adjusted so that blood pH is not allowed to increase above normal. In situations in which respiratory acidosis may be present concomitantly with metabolic acidosis, the drug may be used with mechanical assistance to ventilation.
  • Care must be exercised to prevent perivascular infiltration since this can cause inflammation, necrosis and sloughing of tissue. Venospasm and intravenous thrombosis, which may occur during infusion, can be minimized by insuring that the injection needle is well within the largest available vein and that solutions are slowly infused. Intravenous catheters are recommended. If perivascular infiltration occurs, institute appropriate countermeasures.
  • Tham Solution (tromethamine injection) should be administered slowly and in amounts sufficient only to correct the existing acidosis, and to avoid overdosage and alkalosis. Overdosage in terms of total drug and/or too rapid administration, may cause hypoglycemia of a prolonged duration (several hours). Therefore, frequent blood glucose determinations should be made during and after therapy.
  • Extreme care should be exercised in patients with renal disease or reduced urinary output because of potential hyperkalemia and the possibility of a decreased excretion of tromethamine. In such patients, the drug should be used cautiously with electrocardiographic monitoring and frequent serum potassium determinations.
  • Because clinical experience has been limited generally to short-term use, the drug should not be administered for more than a period of one day except in a life-threatening situation.
  • The intravenous administration of Tham Solution can cause fluid and/or solute overloading resulting in dilution of serum electrolyte concentrations, overhydration, congested states or pulmonary edema.
  • Additives may be incompatible. Consult with pharmacist, if available. When introducing additives, use aseptic technique, mix thoroughly and do not store.

Adverse Reactions

Clinical Trials Experience

  • Generally, side effects have been infrequent.
  • Respiratory: Although the incidence of ventilatory depression is low, it is important to keep in mind that such depression may occur. Respiratory depression may be more likely to occur in patients who have chronic hypoventilation or those who have been treated with drugs which depress respiration. In patients with associated respiratory acidosis, tromethamine should be administered with mechanical assistance to ventilation.
  • Vascular: Extreme care should be taken to avoid perivascular infiltration. Local tissue damage and subsequent sloughing may occur if extravasation occurs. Chemical phlebitis and venospasm also have been reported.
  • Hematologic: Transient depression of blood glucose may occur.
  • Reactions which may occur because of the solution or the technique of administration include febrile response, infection at the site of injection, venous thrombosis or phlebitis extending from the site of injection extravasation and hypervolemia.
  • If an adverse reaction does occur, discontinue the infusion, evaluate the patient, institute appropriate therapeutic countermeasures and save the remainder of the fluid for examination if deemed necessary.

Postmarketing Experience

  • There is limited information regarding Postmarketing Experience of Tromethamine in the drug label.

Drug Interactions

There is limited information regarding Tromethamine Drug Interactions in the drug label.

Use in Specific Populations

Pregnancy

Pregnancy Category (FDA):

  • Pregnancy Category


Pregnancy Category (AUS):

  • Australian Drug Evaluation Committee (ADEC) Pregnancy Category

There is no Australian Drug Evaluation Committee (ADEC) guidance on usage of Tromethamine in women who are pregnant.

Labor and Delivery

There is no FDA guidance on use of Tromethamine during labor and delivery.

Nursing Mothers

There is no FDA guidance on the use of Tromethamine with respect to nursing mothers.

Pediatric Use

There is no FDA guidance on the use of Tromethamine with respect to pediatric patients.

Geriatic Use

There is no FDA guidance on the use of Tromethamine with respect to geriatric patients.

Gender

There is no FDA guidance on the use of Tromethamine with respect to specific gender populations.

Race

There is no FDA guidance on the use of Tromethamine with respect to specific racial populations.

Renal Impairment

There is no FDA guidance on the use of Tromethamine in patients with renal impairment.

Hepatic Impairment

There is no FDA guidance on the use of Tromethamine in patients with hepatic impairment.

Females of Reproductive Potential and Males

There is no FDA guidance on the use of Tromethamine in women of reproductive potentials and males.

Immunocompromised Patients

There is no FDA guidance one the use of Tromethamine in patients who are immunocompromised.

Administration and Monitoring

Administration

  • Oral
  • Intravenous

Monitoring

There is limited information regarding Monitoring of Tromethamine in the drug label.

  • Description

IV Compatibility

There is limited information regarding IV Compatibility of Tromethamine in the drug label.

Overdosage

Acute Overdose

Signs and Symptoms

  • Description

Management

  • Description

Chronic Overdose

There is limited information regarding Chronic Overdose of Tromethamine in the drug label.

Pharmacology

There is limited information regarding Tromethamine Pharmacology in the drug label.

Mechanism of Action

Structure

File:Tromethamine01.png
This image is provided by the National Library of Medicine.

Pharmacodynamics

There is limited information regarding Pharmacodynamics of Tromethamine in the drug label.

Pharmacokinetics

There is limited information regarding Pharmacokinetics of Tromethamine in the drug label.

Nonclinical Toxicology

There is limited information regarding Nonclinical Toxicology of Tromethamine in the drug label.

Clinical Studies

There is limited information regarding Clinical Studies of Tromethamine in the drug label.

How Supplied

Storage

There is limited information regarding Tromethamine 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 Tromethamine in the drug label.

Precautions with Alcohol

  • Alcohol-Tromethamine interaction has not been established. Talk to your doctor about the effects of taking alcohol with this medication.

Brand Names

Look-Alike Drug Names

Drug Shortage Status

Price

References

The contents of this FDA label are provided by the National Library of Medicine.

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  2. ↑ "http://www.ismp.org". External link in |title= (help)

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