Before taking co-trimoxazole, tell your doctor and pharmacist if you are allergic to co-trimoxazole, diuretics (water pills, oral diabetes medications, any sulfa drug, or any other drugs. tell your doctor and pharmacist what prescription and nonprescription medications you are taking, especially methotrexate, phenytoin (Dilantin), warfarin (Coumadin), and vitamins. tell your doctor if you have or have ever had liver or kidney disease, asthma, severe allergies, or glucose-6-phosphate dehydrogenase (G-6-PD) deficiency (an inherited blood disease). tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant while taking co-trimoxazole, call your doctor. plan to avoid unnecessary or prolonged exposure to sunlight and to wear protective clothing, sunglasses, and sunscreen. Co-trimoxazole may make your skin sensitive to sunlight. |