Risek

SPECIFICATION

20mg , 40mg

Generics

Omeprazole

About

It inhibits secretion of gastric acid by irreversibly blocking the enzyme system of hydrogen/potassium adenosine triphosphatase (H+/K+ ATPase), the proton pump of the gastric parietal cell. This effect is dose-related and leads to inhibition of both basal and stimulated acid secretion irrespective of the stimulus.

Indication

It (Omeprazole) is indicated in adults for the treatment of: Gastro-Esophageal Reflux Disease (GERD):- Treatment of erosive reflux esophagitis.- Long term management of patients with healed esophagitis to prevent relapse.- Symptomatic treatment of gastroesophageal reflux disease (GERD).

Side Effects

Common : Central and peripheral nervous system: Headache. Gastrointestinal: Diarrhea, constipation, abdominal pain, nausea/vomiting and flatulence.Uncommon : Central and peripheral nervous system: Dizziness, paraesthesia, somnolence, insomnia and vertigo.Hepatic: Increased liver enzymesSkin: Rash and/or pruritis, urticariaOther: MalaiseRare : Central and peripheral nervous system: Reversible mental confusion, agitation,aggression, depression and hallucinations, predominantly in severely ill patients.Endocrine: Gynecomastia

Drug Interactions

Ketoconazole and itraconazole , diazepam, citalopram, imipramine, clomipramine, phenytoin , Atazanavir , Digoxin , Clopidogrel , posaconazole, erlotinib , Saquinavir , Tacrolimus , Methotrexate , clarithromycin , CYP2C19 or CYP3A4 or both (such as rifampicin and St John's wort.

When not to Use

Omeprazole is contraindicated in patients with known hypersensitivity to any component of the formulation or to substituted benzimidazoles. Omeprazole must not be used concomitantly with nelfinavir.

Precaution

Omeprazole, as all acid-blocking medicines, may reduce the absorption of vitamin B12 (cyanocobalamin) due to hypo- or achlorhydria. This should be considered in patients with reduced body stores or risk factors for reduced vitamin B12 absorption on long-term therapy.