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Drug Interactions between promazine and succinylcholine

This report displays the potential drug interactions for the following 2 drugs:

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Interactions between your drugs

Moderate

promazine succinylcholine

Applies to: promazine and succinylcholine

MONITOR: The combination of succinylcholine and promazine may lengthen the duration of neuromuscular blockade. Prolonged apnea has been reported in one case. The proposed mechanism is promazine-induced inhibition of plasma cholinesterase.

MANAGEMENT: Patients should be monitored for prolonged neuromuscular blockade if they are given promazine after receiving succinylcholine.

References (1)
  1. Regan AG, Aldrete JA (1967) "Prolonged apnea after administration of promazine hydrochloride following succinylcholine infusion." Anesth Analg, 46, p. 315-8

Drug and food interactions

Moderate

promazine food

Applies to: promazine

GENERALLY AVOID: Concurrent use of ethanol and phenothiazines may result in additive CNS depression and psychomotor impairment. Also, ethanol may precipitate dystonic reactions in patients who are taking phenothiazines. The two drugs probably act on different sites in the brain, although the exact mechanism of the interaction is not known.

MANAGEMENT: Patients should be advised to avoid alcohol during phenothiazine therapy.

References (2)
  1. Lutz EG (1976) "Neuroleptic-induced akathisia and dystonia triggered by alcohol." JAMA, 236, p. 2422-3
  2. Freed E (1981) "Alcohol-triggered-neuroleptic-induced tremor, rigidity and dystonia." Med J Aust, 2, p. 44-5

Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.

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Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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