

271 Yothapol Khemarak Phoumin Blvd (271), Phnom Penh, Cambodia
Omeprazole GPO 20 mg
No prescription required
This medicine is available over the counter. Still, please consult your doctor or pharmacist before using new medication.
Last updated 24/05/2026 at 2:11 AM

271 Yothapol Khemarak Phoumin Blvd (271), Phnom Penh, Cambodia
Indication
Used for the treatment of gastroesophageal reflux disease (GERD), peptic ulcer disease (gastric and duodenal ulcers), Helicobacter pylori eradication (in combination therapy), Zollinger-Ellison syndrome, and prevention of NSAID-associated gastric ulcers.
Ingredients
- Omeprazole 20 mg
Direction
Adults: Typically 20 mg once daily before breakfast for 4–8 weeks depending on the condition. For H. pylori eradication, used in combination with antibiotics as directed by a doctor. Swallow capsule whole; do not crush or chew.
Side effects
- Headache.
- Diarrhoea
- nausea
- vomiting
- abdominal pain.
- Flatulence
- constipation.
- Rare: hypomagnesaemia
- bone fracture risk with prolonged use
- C. difficile
- associated diarrhoea.
Precautions
- Long
- term use may be associated with hypomagnesaemia and vitamin B12 deficiency.
- May mask symptoms of gastric cancer
- exclude malignancy before starting therapy.
- Use with caution in patients with severe hepatic impairment.
- May reduce absorption of drugs dependent on gastric pH (e.g. ketoconazole
- atazanavir).
- Consult a doctor before use if pregnant or breastfeeding.
- Keep out of reach of children.
Indication
Used for the treatment of gastroesophageal reflux disease (GERD), peptic ulcer disease (gastric and duodenal ulcers), Helicobacter pylori eradication (in combination therapy), Zollinger-Ellison syndrome, and prevention of NSAID-associated gastric ulcers.
Ingredients
- Omeprazole 20 mg
Direction
Adults: Typically 20 mg once daily before breakfast for 4–8 weeks depending on the condition. For H. pylori eradication, used in combination with antibiotics as directed by a doctor. Swallow capsule whole; do not crush or chew.
Side effects
- Headache.
- Diarrhoea
- nausea
- vomiting
- abdominal pain.
- Flatulence
- constipation.
- Rare: hypomagnesaemia
- bone fracture risk with prolonged use
- C. difficile
- associated diarrhoea.
Precautions
- Long
- term use may be associated with hypomagnesaemia and vitamin B12 deficiency.
- May mask symptoms of gastric cancer
- exclude malignancy before starting therapy.
- Use with caution in patients with severe hepatic impairment.
- May reduce absorption of drugs dependent on gastric pH (e.g. ketoconazole
- atazanavir).
- Consult a doctor before use if pregnant or breastfeeding.
- Keep out of reach of children.
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