Take 2 Tablets every day in a 12-hour interval. Sulfamethoxazole 800mg Trimethoprim 160mg – 30 Tabs will be finished after 15 days. Or, you may choose to complete a 10-day course and keep the other 10 tablets in hand in case your doctor asks you to continue the dosage for full recovery. https://shopemed.com/product/sulfamethoxazole-800mg-trimetoprim160-mg-30-tabs/