Methenamine Salts has 6 known drug interactions based on U.S. FDA drug labeling data. Notable interactions include combinations with Acetazolamide, Acetazolamide Extended-Release, Acetazolamide Sodium. Patients taking Methenamine Salts should inform their healthcare provider of all current medications — including over-the-counter drugs and supplements — to avoid potentially harmful combinations. Data sourced from OpenFDA and the NIH National Library of Medicine.
- Total
- 6
- Moderate
- 6
Moderate (6)
- Methenamine Salts + Acetazolamide— Acetazolamide may prevent the urinary antiseptic effect of methenamine.
- Methenamine Salts + Acetazolamide Extended-Release— Acetazolamide may prevent the urinary antiseptic effect of methenamine.
- Methenamine Salts + Acetazolamide Sodium— Acetazolamide may prevent the urinary antiseptic effect of methenamine.
- Methenamine Salts + Dextroamphetamine Saccharate, Amphetamine Aspartate Monohydrate, Dextroamphetamine Sulfate And Amphetamine Sulfate— Urinary acidifying agent that lowers blood levels and efficacy of amphetamines. Dose adjustment may be needed based on c…
- Methenamine Salts + Dextroamphetamine Sulfate— Urinary acidifying agent that lowers blood levels and efficacy of amphetamines. Dose adjustment may be needed based on c…
- Methenamine Salts + Metolazone— Efficacy may be decreased due to urinary alkalizing effect of metolazone.