To take cephalexin capsules safely, follow your doctor’s instructions precisely. Typically, adults take 250-500 mg every 6-12 hours for 7-14 days, depending on the infection. Swallow capsules whole with water, with or without food, though food may reduce stomach upset. Complete the full course, even if symptoms improve, to prevent antibiotic resistance. Avoid alcohol, as it may increase side effects like dizziness. Inform your doctor about allergies, medical conditions, or other medications to avoid interactions. For cephalexin capsules wholesale, consult licensed suppliers for bulk purchases, ensuring quality and authenticity. Report side effects like rash or diarrhea immediately.