methenamine-sodium phosphate oral brand names and other generic formulations include:
Uro-Phosphate Oral
sulfamethoxazole-trimethoprim oral brand names and other generic formulations include:
Bactrim DS Oral, Bactrim Oral, Bethaprim DS Oral, Cheragan With Tmp Oral, Cofatrim Forte Oral, Comoxol Oral, Cotrim Double-Strength Oral, Cotrim Oral, Dynasep DS Oral, Dynasep SS Oral, Kidtrim DS Oral, Pediatrim Oral, Septra DS Oral, Septra Oral, SMZ-TMP DS Oral, Sulfamar Oral, Sulfamethoprim DS Oral, Sulfamethoprim Oral, Sulfamethoprim SS Oral, Sulfaprim DS Oral, Sulfaprim Oral, Sulfatrim DS Oral, Sulfatrim Oral, Sulfoxaprim DS Oral, Sulfoxaprim SS Oral, Sulmeprim Oral, Sultrex Oral, Sultrim-DS Oral, Triazole Oral, Trisulfam Oral, Trisuprim Oral, Uroplus DS Oral, Uroplus SS Oral
methenamine-sodium phosphate oral and sulfamethoxazole-trimethoprim oral
methenamine-sodium phosphate oral , sulfamethoxazole-trimethoprim oral Other mechanism. The effect of both drugs is decreased.
methenamine-sodium phosphate oral and sulfamethoxazole-trimethoprim oral
methenamine-sodium phosphate oral , sulfamethoxazole-trimethoprim oral Other (see comment). This combination may form an insoluble precipitate in the urine, decreasing the effects of both agents.
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Drug Interaction Categories
Contraindicated
Never use this combination of drugs because of high risk for dangerous interaction
Serious
Potential for serious interaction; regular monitoring by your doctor required or alternate medication may be needed
Significant
Potential for significant interaction (monitoring by your doctor is likely required)
Minor
Interaction is unlikely, minor, or nonsignificant