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Vonoprazan and Amoxicillin

pronounced as (von oh' pra zan)(a mox" i sil' in)

Why is this medication prescribed?

Vonoprazan and amoxicillin are used to eliminate H. pylori, a type of bacteria that causes ulcers (sores in the lining of the stomach or intestine). Vonoprazan is in a class of medications called potassium-competitive acid blockers (PCAB). Amoxicillin is in a class of medications called antibiotics. Vonoprazan works by decreasing the amount of acid made in the stomach. Amoxicillin work by stopping the growth of the bacteria that may cause ulcers. Antibiotics will not work for colds, flu, or other viral infections.

How should this medicine be used?

Vonoprazan comes as a tablet and amoxicillin comes as a capsule, all to be taken by mouth. Vonoprazan tablets are usually taken with or without food twice a day, 12 hours apart, for 14 days. Amoxicillin capsules are usually taken with or without food three times a day (every 8 hours) for 14 days. To help you take the right number of capsules and tablets at each dose, the medication is packaged in dosing cards. Each dosing card contains all of the medication needed for your daily doses. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take the medication exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.

Take vonoprazan and amoxicillin until you finish the prescription, even if you feel better. If you stop taking antibiotics too soon your infection may not be completely treated and the bacteria may become resistant to antibiotics.

If your condition does not improve or gets worse, call your doctor.

Ask your pharmacist or doctor for a copy of the manufacturer's information for the patient.

Other uses for this medicine

This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.

What special precautions should I follow?

Before taking vonoprazan and amoxicillin,

  • tell your doctor and pharmacist if you are allergic to vonoprazan; amoxicillin (Amoxil, Larotid); penicillin antibiotics; cephalosporin antibiotics such as cefaclor, cefadroxil, cefdinir, cefixime (Suprax), cefpodoxime, cefprozil, cefuroxime, and cephalexin; any other medications; or any of the ingredients in vonoprazan tablets or amoxicillin capsules. Ask your pharmacist for a list of the ingredients.
  • Some medications should not be taken with vonoprazan and amoxicillin. Make sure you have discussed any medications you are currently taking or plan to take with your doctor and pharmacist before starting vonoprazan and amoxicillin. Before starting, stopping or changing any medications while taking vonoprazan and amoxicillin, get the advice of your healthcare provider.
  • tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take while taking vonoprazan and amoxicillin. Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
  • tell your doctor if you have or have ever had mononucleosis (a virus; also called 'mono'), or kidney or liver disease.
  • tell your doctor if you are pregnant or plan to become pregnant. If you become pregnant while taking vonoprazan and amoxicillin, call your doctor.
  • tell your doctor if you are breast-feeding. You should not breastfeed while taking vonoprazan and amoxicillin and for 2 days after your final dose.

What special dietary instructions should I follow?

Unless your doctor tells you otherwise, continue your normal diet.

What should I do if I forget a dose?

Take the missed dose (one vonoprazan tablet and two amoxicillin capsules) as soon as you remember it. However, if it is within 4 hours of your next scheduled dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.

What side effects can this medication cause?

Vonoprazan and amoxicillin may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:

  • diarrhea
  • stomach pain
  • headache
  • stuffy or runny nose
  • sore throat
  • vaginal itching and/or discharge

Some side effects can be serious. If you experience any of these symptoms, call your doctor immediately or get emergency medical treatment:

  • blistering or peeling skin
  • rash; hives; itching; swelling of the lips, face, or tongue; shortness of breath; difficulty breathing or swallowing
  • severe diarrhea (watery or bloody stools) that may occur with or without fever and stomach cramps (may occur up to 2 months or more after your treatment)

Vonoprazan and amoxicillin may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.

If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online ( or by phone (1-800-332-1088).

What should I know about storage and disposal of this medication?

Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from light, excess heat and moisture (not in the bathroom).

It is important to keep all medication out of sight and reach of children as many containers (such as weekly pill minders and those for eye drops, creams, patches, and inhalers) are not child-resistant and young children can open them easily. To protect young children from poisoning, always lock safety caps and immediately place the medication in a safe location – one that is up and away and out of their sight and reach.

Unneeded medications should be disposed of in special ways to ensure that pets, children, and other people cannot consume them. However, you should not flush this medication down the toilet. Instead, the best way to dispose of your medication is through a medicine take-back program. Talk to your pharmacist or contact your local garbage/recycling department to learn about take-back programs in your community. See the FDA's Safe Disposal of Medicines website ( for more information if you do not have access to a take-back program.

In case of emergency/overdose

In case of overdose, call the poison control helpline at 1-800-222-1222. Information is also available online at If the victim has collapsed, had a seizure, has trouble breathing, or can't be awakened, immediately call emergency services at 911.

What other information should I know?

Keep all appointments with your doctor and laboratory.

Before having any laboratory test, tell your doctor and the laboratory personnel that you are taking vonoprazan and amoxicillin.

It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.

Brand names

  • Voquezna® Dual Pak®
Last Revised - 07/15/2022