If your doctor mentioned Cephalexin, you probably wonder what it does and how to use it safely. It’s a common antibiotic that fights infections caused by bacteria. Below you’ll find the basics you need before you start the medication.
First off, follow the dosage your doctor wrote on the prescription. Typical adult doses range from 250 mg to 1000 mg every 6‑8 hours, depending on the infection. Kids get a dose based on weight, so ask the pharmacist if you’re unsure.
Take Cephalexin with a full glass of water. You can take it with food or on an empty stomach—both are fine. The key is consistency: try to keep the timing the same each day so the drug stays at a steady level in your body.
If you miss a dose, take it as soon as you remember. But if it’s almost time for the next dose, skip the missed one—don’t double up. Doubling can increase side‑effects without improving the cure.
Finish the entire course, even if you feel better after a few days. Stopping early can let surviving bacteria grow back and become resistant, making future infections harder to treat.
Cephalexin is usually well‑tolerated, but a few side effects are common. Expect mild stomach upset, a bit of diarrhea, or occasional nausea. These usually go away on their own.
More serious reactions are rare but need urgent attention. Look out for rash, itching, swelling of the face or tongue, or trouble breathing—these could be signs of an allergic reaction.
Another red flag is severe diarrhea that looks watery or contains blood. This might indicate a Clostridioides difficile infection, which requires immediate medical care.
If you notice any of these serious symptoms, call your doctor right away or head to urgent care.
Other tips: store Cephalexin at room temperature, away from moisture and heat. Throw away any tablets that are discolored or cracked.
Before you start, tell your doctor about any other meds you’re taking, especially blood thinners, oral contraceptives, or other antibiotics. Cephalexin can affect how these work.
Pregnant or breastfeeding? Cephalexin is generally considered safe, but it’s still best to discuss any concerns with your healthcare provider.
In short, Cephalexin is a reliable tool against bacterial infections when used correctly. Stick to the prescribed schedule, watch for side effects, and finish the full course. If anything feels off, reach out to your doctor—you’ll be back to feeling normal faster than you think.
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