2 classes: Bactrim (sulfamethoxazole and trimethoprim) is a combination of 2 drugs, trimetoprim and sulfamethoxazole. The first is a pyrimidine derivative and the second is a sulfonamide (sulfa). Ds stands for double strength as opposed to ss, single strength. The difference is in the dosage.
Answered 2/18/2015
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Combo: This is the commercial name for trimethoprim/sulfamethoxazole. The class of antibiotics is sulfonamide antibiotic combination.
Answered 3/5/2016
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A doctor has provided 1 answer
2 doctors weighed in across 2 answers
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