Methenamine Sodium Phosphate Monobasic Monohydrate Phenyl Sa + Urinary Alkalinizing Agents Interaction
Moderateinteraction on record
Description
May cause urine to become alkaline, reducing effectiveness of methenamine by inhibiting its conversion to formaldehyde.
Mechanism
Inhibition of methenamine conversion to formaldehyde
Source: NLP:methenamine, sodium phosphate, monobasic, anhydrous, phenyl salicylate, methylene blue and hyoscyamine sulfate