Generic Name


Therapeutic Category



Omeprazole 20mg Capsules

Proton Pump Inhibitor



    Each capsule contains:

    Omeprazole BP  (As enteric coated pellets)                                   20mg

    Cream coloured pellets filled in Plain Hard Gelatin Capsule (size 2) having yellow body and yellow cap.




    Food Interaction: Absorption may be delayed. St John's wort decreases omeprazole levels. Ethanol may cause gastric mucosal irritation.

    Administration: Should be taken before meal.

    Pregnancy:Category C

    Omeprazole can pass into the breast milk and harm the nursing baby. Do not breast feed while taking omeprazole.

    Storage: Store capsules between 15-30°C protected from light.

    Missed dose:Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose


    Pharmacotherapeutic Group:Proton Pump Inhibitor

     Pharmacodynamic Properties:Omeprazole is a substituted benzimidazole gastric antisecretory agent and is also known as PPI. It blocks the final step in gastric acid secretion by specific inhibition of H+/K+ ATPase enzyme system present on the secretory surface of the gastric parietal cell. Both basal and stimulated acid are inhibited.

     Pharmacokinetic Properties:

    Absorption: Rapid but variably absorbed (oral). Bioavailability: Oral: Approx 30-40%. Time to peak plasma concentration: Approx 1-2 hr.Onset: Approximately 1 hour. Duration: Upto 72 hour. 

    Distribution:Plasma protein binding: Approximately 95% 

    Metabolism: Hepatic metabolism via CYP2C19 isoenzyme to form hydroxyl-omeprazole and CYP3A4 to form omeprazole sulfone.

    Excretion: Mainly via urine (approx 77%), the remainder in faeces (via the bile). Elimination half-life: 0.5-3 hr


    Gastroesophageal reflux disease (GERD), acid related dyspepsia, H. pylori infection, drug induced gastric ulceration, Zollinger Ellison syndrome


    Peptic Ulcer: 20 or 40 mg/day in severe cases for 4 weekk (duodenal ulcer) or for 8 week (gastric ulcer). NSAID associated ulceration: 20 mg once in the morning.Gastro-esophageal reflux disease: 20 mg/day for 4 week may continue for another 4-8 week if necessary.


    Diarrhoea, nausea, constipation, abdominal pain, vomiting, headache, flatulence.


    Gastric malignancy should be ruled out. Pregnancy, lactation, children <1 yr.


    Increased risk of hypomagnesaemia with diuretics. May increase International Normalized Ratio (INR) and prothrombin time with warfarin. May reduce the antiplatelet effect of clopidogrel. Increased risk of digoxin-induced cardiotoxic effects. May increase plasma concentration benzodiazepines (e.g. diazepam), clarithromycin and methotrexate. Decreased absorption of itraconazole, ketoconazole, posaconazole, dasatinib, iron salts. May decrease plasma concentration and pharmacological effects of rilpivirine, nelfinavir and atazanavir.


    Known hypersensitivity to omeprazole, any ingredient in the formulation, or esomeprazole or other substituted benzimidazoles.


    ULSEF: Each box contains 20 Strips of 10 Tablets per strip