CO-Trimoxazole is a combination antibiotic used to treat a wide range of bacterial infections. It combines two active ingredients: Trimethoprim and Sulfamethoxazole. Together, these components effectively inhibit the production of folic acid in bacteria, hindering their growth and multiplication. CO-Trimoxazole is available in two dosage strengths: 80mg Trimethoprim/400mg Sulfamethoxazole (Koye/Askon brand) and 160mg Trimethoprim/800mg Sulfamethoxazole (Omega brand). It is commonly prescribed for urinary tract infections (UTIs), certain respiratory infections like pneumonia, gastrointestinal conditions such as traveler's diarrhea, ear infections, and some skin infections. The medication is typically administered orally and can be taken with or without food. It is crucial to complete the full course of the medicine as prescribed to ensure maximum effectiveness and help prevent the emergence of bacterial resistance.