Albendazole: Uses, Dosage, Side Effects & Where to Buy Safely

Albendazole is a common antiparasitic medicine used to treat many worm infections. If you suspect a parasitic infection, knowing what albendazole does, how it’s usually taken, and what to watch for can help you ask the right questions at the doctor’s office or pharmacy.

How albendazole works and typical doses

Albendazole stops parasites from absorbing sugar so they lose energy and die. For simple intestinal worms, a single 400 mg dose is often used. For pinworms, doctors usually give 400 mg once and repeat the dose after two weeks to catch any new eggs that hatched.

Some infections need higher or longer treatment. For hydatid disease or neurocysticercosis, doctors may prescribe albendazole for weeks or months, sometimes at doses like 400 mg twice daily. Exact dose and length depend on the infection type, your weight, and other health issues. Don’t guess—these are prescription decisions.

Safety, side effects, and buying advice

Common side effects include stomach pain, nausea, headache, and dizziness. Longer courses can affect the liver and blood counts, so doctors often order blood tests during treatment. Rare but serious effects include liver damage and low white blood cell counts. If you have liver disease, are pregnant (especially first trimester), or breastfeeding, tell your doctor—albendazole is usually avoided in pregnancy.

Drug interactions matter. Some medicines that change how your liver works can raise or lower albendazole levels. Examples include anticonvulsants like carbamazepine and phenytoin (they can lower albendazole levels) and cimetidine (which can increase levels). Always tell your prescriber about other drugs and supplements you take.

Albendazole is prescription-only in many countries. When buying online, choose a licensed pharmacy, look for clear contact info, and never use a site that skips prescriptions for prescription drugs. Check pill markings and packaging and compare with trusted sources. If a price looks too good to be true, it might be counterfeit. Our site has related posts that can help, like guides on mebendazole deals and alternatives to similar antiparasitics.

If you start albendazole and notice severe abdominal pain, jaundice (yellow skin or eyes), severe fatigue, or easy bruising, stop and seek medical help. For routine cases, a single 400 mg dose is simple and effective, but for anything more complicated, work with a clinician who monitors treatment.

Want more practical help? Search our articles on related drugs, safe online pharmacies, and cost-saving tips. Use those resources to compare options and prepare questions before you talk to your doctor or pharmacist.