-5%
Generic Name: Omeprazole 20mg
Manufacturer/Distributor: Square Pharmaceuticals Ltd.
Indications
Omeprazole is used to treat the following conditions:
- Duodenal and gastric ulcers
- Duodenal and stomach ulcers caused by NSAIDs
- As a preventative measure in individuals with a history of NSAID-related duodenal and stomach ulcers.
- GERD is an abbreviation for gastroesophageal reflux disease.
- Long-term acid reflux disease management
- Dyspepsia caused by acid
- Esophagitis with severe ulcerating reflux
- Acid aspiration prevention during general anesthesia
- Zollinger-Ellison syndrome is a condition in which there is a buildup of toxins in
- A peptic ulcer caused by Helicobacter pylori.
Pharmacology
Omeprazole, a substituted benzimidazole, is a stomach acid secretion inhibitor. It reduces stomach acid secretion by inhibiting the enzyme system of hydrogen-potassium-adenosine triphosphatase (H+/K+ ATPase) in the gastric parietal cell. The antisecretory action begins within one hour of oral administration, with the greatest impact happening within two hours and secretion suppression lasting up to 72 hours. When the medication is stopped, secretory activity gradually recovers over 3 to 5 days.
Dosage & Administration
Oral-
- Benign gastric and duodenal ulcer: 20 mg once daily for 4 weeks in duodenal ulceration, 8 weeks in gastric ulceration; in severe or recurrent cases, dose to be increased to 40 mg daily; maintenance dose for recurrent duodenal ulcer, 20 mg once daily; in the prevention of relapse in duodenal ulcer, 10-20 mg daily.
- NSAID-associated duodenal or gastric ulcer: 20 mg once daily for 4 weeks, continued for further 4 weeks, if not fully healed. 20 mg once daily is used as prophylaxis in patients with a history of NSAID-associated duodenal or gastric ulcers.
- Gastro-esophageal reflux disease: 20 mg once daily for 4 weeks, continued for further 4-8 weeks, if not fully healed; 40 mg once daily has been given for 8 weeks in gastro-esophageal reflux disease, refractory to other treatment; maintenance dose is 20 mg once daily.
- Long-term management of acid reflux disease: 10-20 mg daily.
- Acid-related dyspepsia: 10-20 mg once daily for 2-4 weeks.
- Prophylaxis of acid aspiration: 40 mg on a preceding evening, then 40 mg 2-6 hours before surgery.
- Zollinger-Ellison syndrome: Initially 60 mg once daily; usual range 20-120 mg daily (If the daily dose is more than 80 mg, 2 divided doses should be used).
- Helicobacter pylori eradication regimen in peptic ulcer disease: Omeprazole is recommended at a dose of 20 mg twice daily in association with antimicrobial agents as detailed below: Amoxicillin 500 mg and Metronidazole 400 mg both three times a day for one week, or Clarithromycin 250 mg and Metronidazole 400 mg both twice a day for one week, or Amoxicillin 1 g and Clarithromycin 500 mg both twice a day for one week.
- Pediatric use in severe ulcerating reflux esophagitis (Child>1 year): If bodyweight 10-20 kg, 10-20 -mg once daily for 4-12 weeks; if body weight over 20 kg, 20-40 mg once daily for 4-12 weeks.
Interaction
Omeprazole can cause diazepam, warfarin, and phenytoin to be eliminated more slowly. When Omeprazole is added to the therapy, the amount of warfarin or phenytoin may need to be reduced. Omeprazole does not appear to interact with theophylline, propranolol, or antacids.
Contraindications
Omeprazole is not recommended for people who have a history of hypersensitivity to any of the formulation’s components.
Side Effects
Omeprazole is well tolerated by most people. Nausea, stomach colic, paresthesia, dizziness, and headache have all been reported to be minor and transitory, with no dosage decrease.
Pregnancy & Lactation
Omeprazole is classified as pregnancy category C by the US Food and Drug Administration. However, the findings of three prospective epidemiological studies show that Omeprazole has no negative effects on pregnancy or the health of the fetus/newborn child. There is no information on Omeprazole’s entry into breast milk or its effects on the newborn. If the usage of Omeprazole is deemed necessary, breastfeeding should be terminated.
Precautions & Warnings
When a stomach ulcer is suspected, the potential of gastric cancer should be ruled out before starting Omeprazole treatment, as the medication may relieve symptoms while delaying detection.
Storage Conditions
Keep away from light and heat in a dry area. Keep out of children’s reach.
