Prilosec
PriLOSEC 10MG
What is Prilosec?
Prilosec (omeprazole) is a proton pump inhibitor (PPI) that decreases the amount of acid produced in the stomach. It is commonly used to treat symptoms of gastroesophageoid reflux disease (GERD), such as heartburn, and other conditions involving excessive stomach acid such as Zollinger-Ellison syndrome. Prilosec is also utilized in the treatment of peptic ulcers and is sometimes prescribed in combination with antibiotics to eradicate Helicobacter pylori bacteria from the stomach.Side Effects
- Blistering, peeling, red skin rash
- Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
- Unusual bleeding, bruising, tiredness, or weakness
Warnings
- Tell your doctor if you are pregnant or breastfeeding, or if you have kidney disease, liver disease, lupus, or osteoporosis.
- This medicine may cause the following problems: Kidney problems, including acute tubulointerstitial nephritisIncreased risk of broken bones in the hip, wrist, or spine (more likely if used several times per day or longer than 1 year)Serious skin reactions, including Stevens-Johnson syndrome, toxic epidermal necrolysis, acute generalized exanthematous pustulosis, and drug reaction with eosinophilia and systemic symptoms (DRESS)LupusFundic gland polyps (abnormal growth in the upper part of your stomach)
- 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.
Prescription savings · · · ·
What is Prilosec ?
Prilosec (omeprazole) is a proton pump inhibitor (PPI) that decreases the amount of acid produced in the stomach. It is commonly used to treat symptoms of gastroesophageoid reflux disease (GERD), such as heartburn, and other conditions involving excessive stomach acid such as Zollinger-Ellison syndrome. Prilosec is also utilized in the treatment of peptic ulcers and is sometimes prescribed in combination with antibiotics to eradicate Helicobacter pylori bacteria from the stomach.- Blistering, peeling, red skin rash
- Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
- Unusual bleeding, bruising, tiredness, or weakness
- Severe diarrhea that does not go away, stomach cramps or pain, nausea, vomiting, loss of appetite, weight loss
- Fever, swelling in the body, unusual weight gain, change in how much or how often you urinate, blood in the urine
- Dry mouth, increased thirst, confusion, numbness and tingling around the mouth, fingertips, or feet
- Seizures, dizziness, fast or uneven heartbeat, muscle cramps or twitching
- Joint pain, rash on your cheeks or arms that gets worse in the sun
- Tell your doctor if you are pregnant or breastfeeding, or if you have kidney disease, liver disease, lupus, or osteoporosis.
- This medicine may cause the following problems: Kidney problems, including acute tubulointerstitial nephritisIncreased risk of broken bones in the hip, wrist, or spine (more likely if used several times per day or longer than 1 year)Serious skin reactions, including Stevens-Johnson syndrome, toxic epidermal necrolysis, acute generalized exanthematous pustulosis, and drug reaction with eosinophilia and systemic symptoms (DRESS)LupusFundic gland polyps (abnormal growth in the upper part of your stomach)
- 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.
- Keep all medicine out of the reach of children. Never share your medicine with anyone.
Prilosec Coupons & Prices
PriLOSEC 10MG
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Looking for a Prilosec coupon? Prilosec (omeprazole) is a proton pump inhibitor used for GERD, ulcers, and other acid-related conditions, and because a generic version is available, comparing the brand, the generic, and a pharmacy discount coupon is often the easiest way to find the lowest price near you — enter your ZIP above to see today's price.
What Is Prilosec and How Does It Work?
Prilosec is the brand name for omeprazole, a proton pump inhibitor (PPI) that works by irreversibly blocking the stomach's H+/K+ ATPase, often called the "proton pump," to reduce acid production. Prescription Prilosec is approved to treat GERD and erosive esophagitis, Zollinger-Ellison syndrome and other conditions that cause excess stomach acid, and duodenal or gastric ulcers, including as part of a combination regimen with antibiotics such as clarithromycin and amoxicillin to help eradicate H. pylori infection and reduce ulcer recurrence.
Prilosec OTC, the nonprescription version, is approved only for frequent heartburn occurring two or more days a week in adults, taken as a 14-day treatment course. Omeprazole does not relieve heartburn immediately — it can take one to four days of daily use for the full acid-reducing effect to kick in.
Prilosec Coupon: What Actually Lowers the Cost
Because a generic version of omeprazole is available, generic omeprazole is generally the biggest savings lever for anyone filling a Prilosec prescription — ask your pharmacist whether the generic is right for you. Prilosec OTC and generic omeprazole are also sold without a prescription for short-course heartburn relief. There is currently no manufacturer savings card for Prilosec, so your main options for lowering the cost are the generic, the OTC version, and a pharmacy discount coupon.
An Rx.com cash coupon can be used regardless of insurance status — including if you're uninsured, on Medicare (which typically doesn't cover OTC purchases), or simply want to compare the cash price against your co-pay before you check out. Prices vary by pharmacy, so enter your ZIP code above to see today's price near you.
Prilosec vs. Other Heartburn and Acid Reflux Medications
If Prilosec (omeprazole) isn't the right fit, several other options treat acid-related conditions. Other proton pump inhibitors include Nexium (esomeprazole), pantoprazole, and Prevacid (lansoprazole) — all work the same way as Prilosec, by blocking the proton pump. Famotidine is a different class of acid reducer, an H2 blocker, that some people use instead of or alongside a PPI. Ask your doctor or pharmacist which option fits your specific diagnosis, since PPIs and H2 blockers aren't interchangeable for every condition.
If cost is the main concern, ask about filling with generic omeprazole instead of brand-name Prilosec — they contain the same active ingredient.
Prilosec Safety Information
Prilosec does not carry an FDA boxed warning. Its label does include several warnings and precautions worth knowing about, especially with long-term or high-dose use: hypersensitivity reactions, acute kidney inflammation (acute tubulointerstitial nephritis) that can occur at any point during treatment, Clostridioides difficile-associated diarrhea, low magnesium levels (which can lead to low calcium or potassium), vitamin B12 deficiency, an increase in stomach (gastric fundic gland) polyps, and a higher risk of hip, wrist, or spine fractures. Omeprazole can also interact with warfarin, reduce the effectiveness of clopidogrel, and interact with other drugs processed by the CYP2C19 enzyme.
The Prilosec OTC label limits use to 14-day courses, up to three times a year, and warns against taking it for longer than 14 days without talking to a doctor first. This is general information, not medical advice — talk with your doctor or pharmacist about whether Prilosec is right for you and how long you should take it.
This Prilosec information was written and reviewed against authoritative U.S. medical sources — MedlinePlus (U.S. National Library of Medicine), DailyMed, and FDA prescribing information — and checked for accuracy. It is provided for education and is not a substitute for professional medical advice.
Verify the official label: Prilosec on DailyMed (FDA)
Reviewed against FDA labeling · Last reviewed July 2026
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Medical disclaimer: This information is provided for general educational purposes only and is not medical advice. It is not a substitute for professional diagnosis or treatment. Always consult a licensed physician, pharmacist, or other qualified healthcare provider before starting, stopping, or changing any medication or treatment. Never disregard professional medical advice or delay seeking it because of something you read here. If you think you may have a medical emergency, call your doctor or 911 immediately.