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Omeprazole - Indications, Dosage, Side Effects and Precautions

Written & Compiled by Anushta Chandrapalan, M.Sc  | Medically Reviewed by The Medindia Medical Review Team
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Information about Omeprazole

Generic Name : Omeprazole
Pronunciation : oh me' pray zol
Latest prescription information about Omeprazole. Learn how to pronounce the drug's name, its indications, dosage, how to take, when to take, when not to take, side effects, special precautions, warnings and its storage instructions . Also listed are the International and Indian trade name(s) of the drug and its price list.
ICD Code : Y53.0 | Therapeutic Classification : Antiulcers

Trade Names/Brand Names of Omeprazole

India : 


International : 


Why is Omeprazole Prescribed? (Indications)

This medication is a proton pump inhibitor, prescribed for indigestion, peptic ulcer and gastroesophageal reflux disease (GORD/GERD).  It works by decreasing stomach acid production.


When should Omeprazole not be taken? (Contraindications)


What is the dosage of Omeprazole?

PO- The recommended adult oral dose is 20 mg once daily.

How should Omeprazole be taken?

It comes as a tablet and capsule to take by mouth, before food.

What are the warnings and precautions for Omeprazole?

• Caution should be exercised in patients with history of osteoporosis, stomach cancer, liver or kidney disease, any allergy, who are taking other medications, elderly, children, during pregnancy and breastfeeding.

It may cause drowsiness or dizziness, do not drive a car or operate machinery while taking this medication.

What are the side effects of Omeprazole?

   Body As a Whole : Hypersensitivity reactions including shock, asthma, hives, fever, pain, fatigue and uneasiness.
   Heart : Chest pain, fast or slow heart rate, palpitations, high blood pressure and swelling in the extremities.
   Genitourinary : Breast enlargement in male.
   Metabolic : Low sugar and weight gain.
   Musculoskeletal : Muscle weakness, muscle cramps/pain, joint pain, leg pain, immune-mediated necrotizing myopathy (IMNM) and bone fracture.
   Central Nervous System : Sleep disturbances, depression, agitation, aggression, hallucinations, confusion, nervousness, apathy, drowsiness, anxiety, dream abnormalities, tremors, tingling and uneasiness.
   Respiratory : Nose bleed and pharyngeal pain.
   Skin : Stevens-Johnson syndrome, hives, rash, inflammation, itching, hair loss and dry skin.
   Eye and ENT : Ringing in the ear, taste perversion, dry eye, blurred vision, double vision and eye irritation.
   Genitourinary : Blood in urine, protein in urine, urinary tract infection, urinary frequency and testicular pain.
   Blood : Anemia, decrease in white blood cells and platelets.

What are the other precautions for Omeprazole?

Avoid excess dosage.

What are the storage conditions for Omeprazole?

Store it at room temperature, away from heat and light.

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Can i have omeprazole in cases where i am having stomach pain and hard mass feeling of stomach

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