Methamphetamine drug interactions

List of drug interactions
Insulin Guanethidine Tricyclic antidepressants Phenothiazines

Insulin
Insulin requirements in diabetes mellitus may be altered in association with the use of methamphetamine and the concomitant dietary regimen. Return to top

Guanethidine
Methamphetamine may decrease the hypotensive effect of guanethidine. Return to top

Tricyclic antidepressants
Concurrent administration of tricyclic antidepressants and indirect-acting sympathomimetic amines such as the amphetamines, should be closely supervised and dosage carefully adjusted. Return to top

Phenothiazines
Phenothiazines are reported in the literature to antagonize the CNS stimulant action of the amphetamines. Return to top