Final answer:
Trimethoprim/sulfamethoxazole, also known by the brand name Bactrim, is a combination medication used to treat urinary tract infections (UTIs). It inhibits the growth of bacteria by inhibiting the synthesis of folic acid. This medication is typically effective for UTIs.
Step-by-step explanation:
Trimethoprim/sulfamethoxazole, also known by the brand name Bactrim, is a combination medication used to treat urinary tract infections (UTIs). It is commonly prescribed for bacterial cystitis, which is an infection of the bladder. Trimethoprim/sulfamethoxazole works by inhibiting the synthesis of folic acid, which is necessary for the growth of bacteria. This combination medication has a synergistic effect, meaning that it is more effective when used together compared to using each drug alone. Trimethoprim/sulfamethoxazole is typically effective for UTIs, but its efficacy may vary depending on the specific bacteria causing the infection.