Prevpac – lansoprazole, amoxicillin and clarithromycin

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Prevpac is a prepackaged combination of medications designed to treat duodenal ulcers caused by Helicobacter pylori bacteria, the most common cause of ulcers. Each dose of Prevpac contains four pills: one pink and black capsule (PREVACID), two opaque, yellow capsules (amoxicillin) and one yellow tablet (clarithromycin). Prevpac has a card containing two PREVACID 30 mg. capsules, four amoxicillin 500 mg. capsules, and two clarithromycin 500 mg tablets.

Active ingredients

The active ingredient in PREVACID delayed release capsules is lansoprazole, a substituted benzimidazole which stops gastric acid.

How should it be used?

Take Prevpac exactly as your doctor has prescribed, and finish the entire packet of medicine. If you stop too soon, the ulcer may not heal completely and your symptoms may return. Prevpac should be taken before eating. Swallow each pill whole; do not crush or chew.

Special Precautions/Instructions

Before taking this prescription, tell your doctor about all medicines you may be taking including any over-the-counter drugs and herbal medications, if you are allergic to lansoprazole, amoxicillin, clarithromycin, penicillins, cephalosporins, or macrolide antibiodics, and any other allergies you have.

Also tell your doctor your medical history, especially if you have:

  • Liver disease
  • Kidney disease
  • A certain type of muscle disease
  • A certain type of viral infection.

Side effects

Diarrhea is a common problem caused by antibiodics which usually ends when the antibiodics is stopped. Sometimes after starting treatment with anitbiodics, patients can develop watery and bloody stools (with or without stomach cramps and fever) even as late as two or more months after taking the last dose. If this happens, contact your doctor as soon as possible.

Other serious affects:

  • Signs of new infection, such as fever, chills, body aches, flu symptoms, mouth sores;
  • Easy bruising or bleeding, unusual weakness;
  • Change in the amount or color of your urine.
  • Yellowing eyes/skin
  • Getting really nervous, confusion, unusual thoughts or behavior.

Seek immediate medical help if you have a rare side effect like severe dizziness, fainting, fast/irregular heartbeat, rash, itching/swelling (especially of the face or tongue) or trouble breathing.

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