Cisatracurium and Procainamide interaction
Cisatracurium and Procainamide: both prescribing labels describe an interaction that usually calls for monitoring, a dose change, or spacing the doses.
Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.
What the FDA labels say
From the Cisatracurium (Cisatracurium Besylate) label · effective 2026-06-30
Potentiation of Neuromuscular Blockade Certain drugs may enhance the neuromuscular blocking action of Cisatracurium Besylate Injection including inhalational anesthetics, antibiotics, magnesium salts, lithium, local anesthetics, procainamide and quinidine [see Drug Interactions ( 7.1 )] .
Inhalational anesthetics, antibiotics, local anesthetics, magnesium salts, procainamide, lithium, quinidine : May potentiate or prolong neuromuscular blockade action of Cisatracurium Besylate Injection.
Antibiotics † Local anesthetics Magnesium salts Procainamide Lithium Quinidine May prolong the neuromuscular blockade action of Cisatracurium Besylate Injection Phenytoin, Carbamazepine May increase resistance to the neuromuscular blockade action of Cisatracurium Besylate Injection resulting in shorter durations of neuromuscular blockade and infusion rate requirements…
From the Procainamide (Procainamide Hydrochloride) label · effective 2026-08-31
Patients taking PA who require neuromuscular blocking agents such as succinylcholine may require less than usual doses of the latter, due to PA effects on reducing acetylcholine release.
Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.
Open in the checkerNot 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.