Cephalexin Prescription: What You Need to Know

If your doctor handed you a bottle of Cephalexin, you probably have questions. This antibiotic treats a range of bacterial infections, from skin boils to ear infections. Knowing why it's prescribed, how to use it correctly, and what to watch for can make your recovery smoother and avoid surprises.

When Doctors Prescribe Cephalexin

Cephalexin belongs to the cephalosporin family, which means it fights bacteria that cause common infections. Doctors often choose it for:

• Skin infections like cellulitis or impetigo
• Respiratory infections such as strep throat
• Urinary tract infections
• Bone infections and certain dental abscesses

Because it targets a broad range of bugs, it’s a go‑to option when the infection is straightforward and the bacteria are known to respond well. Your doctor will decide based on the infection type, severity, and any allergies you have.

How to Take Cephalexin Safely

Follow the prescription label exactly. Most adults take 250 mg to 1 g every 6–12 hours, while children get a dose based on weight. Finish the whole course, even if you feel better after a few days. Stopping early can let leftover bacteria grow back and become resistant.

Take Cephalexin with a full glass of water. You can take it with food to avoid stomach upset, but don’t crush or chew extended‑release tablets. If you miss a dose, take it as soon as you remember—unless it’s almost time for the next dose, then skip the missed one and continue the schedule. Never double up.

Common side effects include mild stomach pain, nausea, or a temporary rash. If you develop severe diarrhea, fever, or a rash that spreads quickly, call your doctor right away. These could signal a more serious reaction or a new infection.

Cephalexin can interact with certain medicines, such as blood thinners or oral contraceptives. Let your pharmacist know about every medication you’re on, including over‑the‑counter pills and supplements, so they can check for problems.

Store the tablets at room temperature, away from moisture and heat. Keep the bottle tightly closed and out of reach of children. If you notice any changes in color or smell, discard the medication and talk to your pharmacist.

Before you leave the clinic, ask your doctor these quick questions:

• How long should I take Cephalexin?
• What should I do if I miss a dose?
• Are there any foods or drinks I should avoid?
• What signs mean I need to call you right away?

Getting clear answers helps you stick to the plan and recover fast. Remember, antibiotics like Cephalexin work best when you use them exactly as prescribed.