Prilosec OTC

Purpose of Prilosec OTC

Prilosec OTC is an over-the-counter medication used to treat heartburn.

Active Ingredients

omeprazole magnesium delayed-release tablet 20.6 mg (equivalent to 20 mg omeprazole)

Inactive Ingredients

Prilosec OTC (regular tablets): glyceryl monostearate, hydroxypropyl cellulose, hypromellose, iron oxide, magnesium stearate, methacrylic acid copolymer, microcrystalline cellulose, paraffin, polyethylene glycol 6000, polysorbate 80, polyvinylpyrrolidone, sodium stearyl fumarate, starch, sucrose, talc, titanium dioxide, triethyl citrate

Prilosec OTC (wildberry tablets): FD&C Blue 2 Aluminum Lake, FD&C Red 40 Aluminum Lake, Flavor, Glyceryl Monostearate, Hydroxypropyl Cellulose, Hypromellose, Magnesium Stearate, Methacrylic Acid Copolymer, Mica, Microcrystalline Cellulose, Polyethylene Glycol 6000, Polysorbate 80, Polyvinylpyrrolidone, Saccharin Sodium, Sodium Stearyl Fumarate, Starch, Sucrose, Talc, Titanium Dioxide, Triethyl Citrate

Prilosec OTC FDA Warning

Allergy alert:

  • Do not use if you are allergic to omeprazole.
  • Do not use if you have trouble or pain swallowing food, vomiting with blood, or bloody or black stools.

These may be signs of a serious condition. See your doctor.

Ask a doctor before use if you have:

  • had heartburn over 3 months.
 This may be a sign of a more serious condition.
  • heartburn with lightheadedness, sweating or dizziness
  • chest pain or shoulder pain with shortness of breath; sweating; pain spreading to arms, neck or shoulders; or lightheadedness
  • frequent chest pain
  • frequent wheezing, particularly with heartburn
  • unexplained weight loss
  • nausea or vomiting
  • stomach pain

Ask a doctor or pharmacist before use if you are taking:

  • warfarin, clopidogrel, or cilostazol (blood-thinning medicines)
  • prescription antifungal or anti-yeast medicines
  • diazepam (anxiety medicine)
  • digoxin (heart medicine)
  • tacrolimus (immune system medicine)
  • prescription antiretrovirals (medicines for HIV infection)

Stop use and ask a doctor if:

  • your heartburn continues or worsens
  • you need to take this product for more than 14 days
  • you need to take more than 1 course of treatment every 4 months

If pregnant or breastfeeding, ask a health professional before use.

Keep out of reach of children.

In case of overdose, get medical help or contact a Poison Control Center right away (1-800-222-1222).


  • This product is intended for use by adults 18 years of age and older.
  • This product is to be used once a day (every 24 hours), every day for 14 days.
  • It may take 1 to 4 days for full effect; some people get complete relief of symptoms within 24 hours

14-Day Course of Treatment: 

  • Swallow 1 tablet with a glass of water before eating in the morning.
  • Take every day for 14 days.
  • Do not take more than 1 tablet a day.
  • Do not use for more than 14 days unless directed by your doctor.
  • Swallow whole. Do not chew, crush, or suck tablets.

Repeated 14-Day Courses (if needed): 

  • You may repeat a 14-day course every 4 months.
  • Do not take for more than 14 days or more often than every 4 months unless directed by a doctor.


Pediatric Use

For children under 18 years of age, ask a doctor. Heartburn in children may sometimes be caused by a serious condition.

Other Information About Prilosec OTC

  • Read the directions and warnings before use.
  • Keep the carton. It contains important information.
  • Store at room temperature between 20-25°C (68-77°F) and protect from moisture.