Roxithromycin: what it treats and how to use it safely

Roxithromycin is a macrolide antibiotic used for chest infections, sinusitis, some skin infections and certain throat infections. It works by stopping bacteria from growing. If your doctor prescribes roxithromycin, this quick guide explains how to take it, what side effects to expect, and how to avoid risks — in plain language.

How to take roxithromycin

Common adult doses are 150 mg twice a day or 300 mg once a day. Typical treatment lengths range from 5 to 10 days for respiratory infections; skin infections may need 7–14 days. Always follow your prescriber's instructions. Take tablets with a glass of water, with or without food, at the same times each day to keep medicine levels steady.

Do not stop early even if you feel better — finishing the course lowers the chance the bacteria come back and become resistant. If you miss a dose, take it as soon as you remember unless it's nearly time for the next one; don't double up.

Side effects, warnings and interactions

Most people tolerate roxithromycin well. The common side effects are nausea, stomach pain, diarrhea, headache and taste changes. Those usually pass in a few days. Serious reactions are rare but include severe allergic reaction (hives, trouble breathing), liver problems (yellow skin or dark urine), and irregular heartbeat. If you get any of those, seek medical help immediately.

Tell your doctor about other medicines you take. Roxithromycin can interact with blood thinners (like warfarin), certain cholesterol drugs (statins), and some heart rhythm medications. It can increase the effect of warfarin, raising bleeding risk, and may affect drugs processed by the liver. If you have a heart condition, liver disease, or a history of arrhythmia, your prescriber may choose a different antibiotic.

If you are pregnant, breastfeeding, or planning pregnancy, talk to your clinician before taking roxithromycin. They’ll weigh benefits and risks and may offer an alternative if needed.

Storing roxithromycin is simple: keep it at room temperature away from moisture and direct light. Keep out of reach of children.

Thinking about buying antibiotics online? Only use licensed pharmacies that require a prescription and show real contact details. Look for secure payment, clear shipping info, and verified reviews. Very cheap pills or sites that offer antibiotics without a prescription are red flags — those products may be fake or unsafe.

Questions for your prescriber: What is the exact dose and length of treatment? Are there safer alternatives given my other medicines? What should I watch for that warrants a call or a visit? Writing these down before your appointment helps keep the conversation focused and useful.

Roxithromycin can be a handy antibiotic when used correctly. Follow the prescription, watch for side effects, and buy from trusted sources to stay safe and get better faster.