6 Aug 2009
Bactrim DS is not a form of penicillin. It contains sulfamethoxazole and trimethoprim and is a synthetic antibacterial combination product.
However, if you were inquiring about Bactrim being a penicillin because of allergy reasons then people who are allergic to penicillin will most likely be allergic to Bactrim because of the Sulfur group, which they both have. The sulfur is generally the cause of the allergic reactions.
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My mother has some dementia, but basically has not spoken for 6 months. In early January, she took Bactrim for 7 days and started speaking the 2nd ...
I have taken three pills in three daysfor a uti and the uti is gone but terrible gas and my back is hurting.