What is Omeclamox-Pak: Uses, Warnings & Interactions

Updated May 14, 2025  •  Published Dec 31, 2020

Omeclamox-Pak overview

BRAND NAMES:

  • Omeclamox-Pak

Generic Names:

  • Omeclamox-Pak

Uses:

  • Treats H pylori infections and ulcers. This medicine package contains a penicillin and a macrolide antibiotic, and a proton pump inhibitor (PPI).

Therapeutic Classes:

Forms:

  • Capsule, Tablet, Delayed Release Capsule

How it’s taken:

  • By mouth

What is Omeclamox-Pak used for?

Omeclamox-Pak is indicated for the treatment of stomach and duodenal ulcer in adults with helicobacter pylori infection. It is also used to prevent ulcers from returning. Omeclamox-Pak stops the stomach from producing acid and helps heal the ulcers. Omeclamox-Pak is available as a kit.

What form(s) does Omeclamox-Pak come in

  • Capsule

  • Tablet

  • Delayed Release Capsule

What are common Omeclamox-Pak doses?

  • Box 80 Miscellaneous

  • Blister 8 Miscellaneous

Common Omeclamox-Pak prescriptions

  • Omeclamox-Pak
    500-500-20mg cap-tab-cap, 80 packs box

  • Omeclamox-Pak
    80 miscellaneous box

How to take Omeclamox-Pak

  • Your doctor will tell you how much medicine to use. Do not use more than directed. Each dose of this medicine contains 4 pills.

  • Take each dose on an empty stomach, before your morning and evening meals.

  • Swallow each pill whole. Do not crush, break, or chew it.

  • Take all of the medicine in your prescription to clear up your infection, even if you feel better after the first few doses.

  • Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

  • Take each dose on an empty stomach, before your morning and evening meals.

  • Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.

  • Your doctor will tell you how much medicine to use. Do not use more than directed. Each dose of this medicine contains 4 pills.

  • Take all of the medicine in your prescription to clear up your infection, even if you feel better after the first few doses.

  • Swallow each pill whole. Do not crush, break, or chew it.

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

What to do if you miss a dose of Omeclamox-Pak

Omeclamox-Pak contraindications

  • This medicine is not right for everyone. Do not use it if you had an allergic reaction to omeprazole, clarithromycin, amoxicillin, or similar medicines.

Omeclamox-Pak warnings

  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

  • Tell your doctor if you are pregnant or breastfeeding, or if you have kidney disease, liver disease, heart rhythm problems, or myasthenia gravis. Tell your doctor if you have Asian ancestry.

  • This medicine may cause the following problems:Kidney problemsCutaneous or systemic lupus erythematosus

  • This medicine can cause diarrhea. Call your doctor if the diarrhea becomes severe, does not stop, or is bloody. Do not take any medicine to stop diarrhea until you have talked to your doctor. Diarrhea can occur 2 months or more after you stop taking this medicine.

  • Tell any doctor or dentist who treats you that you are using this medicine. This medicine may affect certain medical test results.

  • Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.

Omeclamox-Pak interactions

  • Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.

  • Tell any doctor or dentist who treats you that you are using this medicine. This medicine may affect certain medical test results.

  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

  • This medicine can cause diarrhea. Call your doctor if the diarrhea becomes severe, does not stop, or is bloody. Do not take any medicine to stop diarrhea until you have talked to your doctor. Diarrhea can occur 2 months or more after you stop taking this medicine.

  • Some medicines can affect how these medicines work. Tell your doctor if you are using any of the following:Alfentanil, bromocriptine, carbamazepine, cilostazol, colchicine, cyclosporine, digoxin, disulfiram, erlotinib, ketoconazole, methylprednisolone, mycophenolate mofetil, phenobarbital, phenytoin, probenecid, rifabutin, sildenafil, tacrolimus, theophylline, valproateBlood thinner (including warfarin)Benzodiazepine or sedative medicine (including alprazolam, diazepam, midazolam, triazolam)Iron supplementMedicine to treat heart rhythm problems (including disopyramide, quinidine)Medicine to treat HIV infection (including atazanavir, nelfinavir, saquinavir)Statin medicine (including lovastatin, simvastatin)

  • Do not use this medicine together with dihydroergotamine, ergotamine, or pimozide.

Omeclamox-Pak side effects

Serious Side Effects

  • Severe diarrhea, stomach cramps, fever

  • Joint pain, skin rash on your cheeks or arms that gets worse when exposed to the sun

  • Fever, joint pain, skin rash, swelling in the body, unusual weight gain, change in how much or how often you urinate

  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing

  • Blistering, peeling, red skin rash

  • Severe muscle pain or weakness

Less Serious Side Effects

  • Headache

  • Change in sense of taste

  • Mild diarrhea, stomach pain

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