Prilosec

(Omeprazole)

Prilosec is used to treat symptoms of gastroesophageal reflux disease (GERD) and other conditions caused by excess stomach acid, such as Zollinger-Ellison syndrome. Also, Prilosec is used to encourage the healing of erosive esophagitis, which is the damage stomach acid can cause to your esophagus. Additionally, Prilosec may be given concurrently with antibiotics to treat gastric ulcers provoked by infection with Helicobacter pylori (H. pylori).

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Brand Versions

Prilosec Prescription Required

Strength
10mg
Country
New Zealand
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Marketed as Losec in New Zealand

Prilosec Prescription Required

Strength
20mg
Country
New Zealand
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Marketed as Losec in New Zealand

Prilosec Prescription Required

Strength
40mg
Country
New Zealand
Select Quantity

Marketed as Losec in New Zealand

Generic Versions
What are generics?

Omeprazole Prescription Required

Strength
10mg
Country
United Kingdom
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Omeprazole Prescription Required

Strength
20mg
Country
United Kingdom
Select Quantity

Omeprazole Prescription Required

Strength
40mg
Country
United Kingdom
Select Quantity

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Important information about Prilosec

How does Prilosec work?

The active ingredient in Prilosec is omeprazole magnesium. Prilosec is a proton pump inhibitor (PPI) that lowers the amount of acid made in the stomach, preventing excess acid production. It is an effective stomach acid reducer that treats frequent heartburn.

How do you use Prilosec?

Follow all directions given to you by your doctor and read all documents provided, including the full Prescribing Information, FDA-Approved Product Labeling, Instructions for Use, and Medication Guide before using Prilosec. However, the following is a synopsis of the general guidelines for the use of Prilosec:

  • Use Prilosec OTC (over-the-counter) Delayed Release Tablets exactly as directed on the label or as your doctor prescribes. OTC Prilosec should only be taken for a 14-day course of treatment. It may take 1 to 4 days before your symptoms improve.
  • If you cannot swallow a capsule whole, sprinkle the medicine into a spoonful of applesauce. Swallow the mixture immediately without chewing.
  • If you miss a dose, take the medicine as soon as possible, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time.
  • Antacids may be taken along with this medication if needed.

What are the side effects of Prilosec?

The most common side effects of Prilosec seen in clinical trials as compared to placebo include:

  • Headache.
  • Stomach pain.
  • Nausea.
  • Diarrhea.
  • Vomiting.
  • Passing gas.

Some individuals may experience serious side effects while using Prilosec. These side effects may require immediate medical attention. If you experience any of the following, contact your healthcare provider or seek emergency medical help:

  • Severe stomach pain or diarrhea.
  • Kidney problems.
  • Serious allergic reaction - blistering skin, fever, chills, trouble breathing.
  • Seizures (convulsions).
  • Lightheadedness.
  • Low magnesium - dizziness, muscle cramps, or muscle spasms.
  • New or worsening symptoms of lupus - joint pain and a skin rash that exacerbates in sunlight.

These are not all of the possible side effects of Prilosec. You should always seek medical advice from your healthcare provider for any questions or concerns about your medical condition or treatment. Read all patient information, medication guides, or drug information sheets that come with this medication. You can also report adverse effects to the Food and Drug Administration at www.fda.gov/medwatch or 1-800-FDA-1088.

What are the warnings or precautions for Prilosec?

Before starting Prilosec, it is crucial to discuss any existing health conditions with your healthcare provider. You should be sure that your healthcare provider is aware of all your medical conditions, including if you have:

  • Heartburn that has endured for over 3 months, as this could be a sign of a more serious condition.
  • Allergic to medicines like omeprazole (Esomeprazole, Lansoprazole, Pantoprazole, Rabeprazole, Nexium, Prevacid, Protonix).
  • Low levels of magnesium in your blood.
  • Osteoporosis or low bone mineral density (osteopenia).
  • Liver disease.
  • Unexplained weight loss.
  • Difficulty or pain with swallowing, bloody or black stools, or vomit that looks like blood.
  • Chest pain or shoulder pain.
  • Kidney problems.
  • Frequent chest pain, heartburn with wheezing, and shortness of breath.

Are there any contraindications with Prilosec?

  • You should not take Prilosec if you are on Edurant (rilpivirine) or other medications that contain rilpivirine. You should also avoid it if you have a history of allergies to PPIs.

How long does it take Prilosec to work?

Prilosec is not intended for the immediate relief of occasional heartburn symptoms. It may take 1 to 4 days for the medicine to fully work, although some people experience complete relief of symptoms within 24 hours.

What interacts with Prilosec?

When Prilosec is taken with other prescription drugs, over-the-counter medications, vitamins, and supplements, it may change how they work or increase the frequency or severity of side effects. Make sure that you tell your healthcare professional about anything that you are taking, including:

  • Mavacamten.
  • HIV infection medication that contains rilpivirine (Complera, Edurant, Odefsey, Juluca).
  • St John's Wort.
  • Blood thinning medications (warfarin, clopidogrel, cilostazol).
  • Prescription antifungal or anti-yeast medicines.
  • Diazepam.
  • Immune system medications (tacrolimus, mycophenolate mofetil).
  • Arthritis medication (methotrexate, especially high-dose treatment).
  • Digoxin.
  • Diuretic or "water pill".
  • Antibiotics (amoxicillin, clarithromycin, rifampin).

What doses of Prilosec are available?

Prilosec is available both over the counter (OTC) and by prescription. The OTC strength is 20 mg while the prescription strengths are 10 mg, 20 mg, and 40 mg.

How do I store Prilosec?

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

Which pharmaceutical company manufactures Prilosec?

Procter and Gamble is a pharmaceutical company that manufactures Prilosec.

Is there a generic version of Prilosec?

Lower-cost generics are available for the brand-name Prilosec.

How do I stop taking Prilosec?

Talk to your provider to make sure stopping the medication is a safe option for you. Also, the use of other medications can smoothen the transition so a rebound reflux does not occur.

Can Prilosec be used if I am pregnant?

Studies suggest that Prilosec is not likely to cause serious birth defects or premature births if taken during pregnancy. However, talk to your doctor if you are already pregnant or if you have any plans to become pregnant. They will know or recommend what is best for you.

Can Prilosec be used if I am breast feeding?

There is information available that shows that Prilosec passes into breast milk in tiny amounts, but your baby will not absorb a lot into their body. It is unlikely that it will cause any side effects in your baby. However, talk to your doctor if you are already breastfeeding or if you have any plans to breastfeed. They will know or recommend what is best for you.

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Important information about buying Prilosec from UniversalDrugstore™

What happens after I place my order for Prilosec with Universal Drugstore?

Once you complete your order, we process, verify, and dispatch your medication. You’ll receive email updates at each stage, including tracking details once your order ships. If any additional documentation is needed (such as a valid prescription), we’ll contact you promptly. Once approved, your order is charged and delivered directly to your doorstep.

How long does it take to process and deliver my order for Prilosec?

Orders are typically processed within 1–3 business days once all required documents are received and approved. Standard delivery times range from 10–18 business days, depending on your location.

Can I track my order of Prilosec?

Yes! Once your medication ships, you will receive an email with tracking information so you can monitor your shipment every step of the way.

What should I do if there is an issue with my order for Prilosec?

Our Customer Care team is available 24/7 to assist with any order-related concerns or questions. If you experience delays, missing items, or need support, contact us using the details provided in your confirmation email.

How is my medication packaged to ensure privacy and safety?

All orders are shipped in discreet, plain packaging to protect your privacy. Medications are securely packaged to prevent damage and ensure they arrive in top condition.

Does Universal Drugstore ship medications that require refrigeration or special handling?

Yes. We use cold-chain shipping methods to safely transport temperature-sensitive medications, ensuring they maintain proper storage conditions throughout delivery.

What are the shipping costs, and does Universal Drugstore offer free delivery?

Shipping costs vary depending on your location and shipping method. Free shipping promotions may be available—check the checkout page for the latest offers. Orders above $100 going to a US destination will receive free shipping.

Does Universal Drugstore accept Medicare or Medicaid for prescriptions?

Currently, we do not bill Medicare or Medicaid directly. However, we provide detailed receipts and documentation that you can submit to your insurance provider for potential reimbursement.

Can I use private health insurance to cover my prescription from Universal Drugstore?

Universal Drugstore does not bill private health insurance directly, but we provide a detailed invoice that you can submit to your insurer for possible reimbursement. Many insurers will accept Unievrsal Drugstore’s documents, but if you have any questions, check with your insurance company prior to purchasing.

How secure is my payment information when ordering from Universal Drugstore?

We use advanced SSL encryption and secure payment processing to ensure that all transactions are 100% protected against fraud and unauthorized access.

Can I order a generic alternative to Prilosec?

Universal Drugstore offers many generic alternatives that provide the same active ingredients at a lower cost. Search for your medication and compare pricing for generic vs. brand-name options. Generic availability depends on the medication.

Do I need a prescription to order Prilosec?

If your medication requires a prescription, you must upload it online, via email, or fax. Over-the-counter (OTC) medications do not require a prescription. All prescription medication purchases require a valid and approved prescription.

Can I order multiple medications at once?

Yes! You can add multiple medications to your cart, including prescription, OTC, and pet medications, and complete your purchase in a single checkout process.

Can I refill my prescription through Universal Drugstore?

Yes! If your prescription includes refills, you can reorder quickly by logging into your account and selecting your medication for a hassle-free refill process. Always refill your medication proactively and ontime, to ensure you do not run out of important medication.

Does Universal Drugstore offer discounts or price matching?

Yes! We offer:

  • Up to 80% savings on medications
  • Price match guarantee – we’ll match competitor pricing on qualifying medications
  • 10% off your first order for new customers

How can I contact Universal Drugstore for additional support?

We offer 24/7 customer support via phone, email, and chat. Visit our Contact Us page for assistance with ordering, shipping, or medication questions.

Important

The information, including but not limited to, text, graphics, images and other material contained on this website are for informational purposes to increase health awareness only. No material on this site is intended to be a substitute for professional medical advice, diagnosis or treatment. 



Always seek the advice of your physician or other qualified health care provider with any questions you may have regarding a medical condition or treatment and before undertaking a new health care regimen, and never disregard professional medical advice or delay in seeking it because of something you have read on this website.