Amantadine and Metoclopramide interaction

Amantadine and Metoclopramide: the Metoclopramide prescribing label flag this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.

Major

Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.

What the FDA labels say

From the Metoclopramide label · effective 2026-05-18

Major

Other important considerations in the differential diagnosis include central anticholinergic toxicity, heat stroke, malignant hyperthermia, drug fever, serotonin syndrome, and primary central nervous system pathology.

Warnings and precautionsby drug classView label on DailyMed
Moderate

Examples antiperistaltic antidiarrheal drugs, anticholinergic drugs, and opiates Dopaminergic Agonists and Other Drugs that Increase Dopamine Concentrations Clinical Impact Decreased therapeutic effect of metoclopramide due to opposing effects on dopamine.

Drug interactionsby drug classView label on DailyMed
Moderate

Examples Apomorphine, bromocriptine, cabergoline, levodopa, pramipexole, ropinirole, rotigotine Succinylcholine, Mivacurium Clinical Impact Metoclopramide inhibits plasma cholinesterase leading to enhanced neuromuscular blockade.

Drug interactionsby drug classView label on DailyMed
Minor

Examples apomorphine, bromocriptine, cabergoline, levodopa, pramipexole, ropinirole, and rotigotine 7.2 Effects of Metoclopramide on Other Drugs Table 4 displays the effects of Metoclopramide on other drugs.

Drug interactionsby drug classView label on DailyMed
Minor

Effects of Metoclopramide on Other Drugs Dopaminergic Agonists and Drugs Increasing Dopamine Concentrations Clinical Impact Opposing effects of metoclopramide and the interacting drug on dopamine.

Drug interactionsby drug classView label on DailyMed

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Not medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.