Promesec (Omesec) 20mg Capsule

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Manufacturer Duopharma
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Dr. Mohd Izzat Amir Bin Awang
Reviewed byDr. Mohd Izzat Amir Bin AwangDoctor of Medicine (MD), University of Mansoura - Manchester
Dr. Adeline Carol Peters
Written byDr. Adeline Carol PetersBachelor of Medicine and Bachelor of Surgery (MBBS) — Manipal Academy of Higher Education (MAHE)

Last updated:

Overview

Promesec (Omesec) 20mg Capsule is a prescription-only medicine (POM) presented as a capsule, with Omeprazole 20mg as its active ingredient content.

This page is limited to product, safety and handling information, in line with Malaysian rules on prescription medicine information for the public. Your prescriber or pharmacist is the right source for anything beyond that, together with the leaflet inside the pack.

Through DoctorOnCall, this product is supplied after an online consultation with a licensed doctor and a valid prescription, and it is checked by a registered pharmacist before dispensing. Take it exactly as prescribed, and speak to your doctor before stopping, changing the dose, or starting any other medicine alongside it.

Directions for Use

Take Promesec (Omesec) 20mg Capsule about 30-60 minutes before a meal, preferably in the morning. Swallow the capsule whole with water – do not chew, crush or open it, as it is designed to protect the medicine from stomach acid until it reaches the small intestine. Complete the full course as advised by your doctor, even if your symptoms improve earlier.

Dosage

The usual dose of Promesec (Omesec) 20mg Capsule is 20mg once daily, which your doctor may adjust up to 40mg daily depending on the condition being treated and your response, with treatment duration ranging from a few weeks to several months. Your doctor will individualise the dose and duration based on your diagnosis.

Storage Instructions

Store below 30°C in a dry place, away from direct sunlight and out of reach of children.

Side Effects

  • Headache
  • Nausea or vomiting
  • Stomach pain
  • Diarrhea or constipation
  • Bloating or gas
  • Dizziness
  • Fatigue

Contraindications

  • Known hypersensitivity to omeprazole or other substituted benzimidazoles
  • Concomitant use with rilpivirine-containing HIV medicines, as omeprazole significantly reduces their absorption
  • Concomitant use with nelfinavir

Drug / Food Interactions

  • Clopidogrel’s antiplatelet effect may be reduced when combined with omeprazole
  • Absorption of drugs that need stomach acid (e.g. ketoconazole, itraconazole, atazanavir) may be reduced
  • Methotrexate levels may increase, particularly with high-dose omeprazole
  • Warfarin’s blood-thinning effect may be enhanced, requiring closer INR monitoring

Quick Tips

  • Take before breakfast for the best acid-suppressing effect
  • Swallow the capsule whole – do not crush, chew or open it
  • Complete the full course prescribed even if you feel better sooner
  • Tell your doctor if you have been using this or a similar acid-reducing medicine for more than a few months

Ingredients / Active Ingredients

  • Omeprazole 20mg

Safety Advice

Pregnancy

Safe If Prescribed

This medicine should only be used during pregnancy if prescribed by a doctor after careful evaluation.

Breastfeeding

Safe If Prescribed

Use during breastfeeding should only be done if prescribed and monitored by a doctor.

Kidney

Use With Care

Use cautiously. Dose adjustment or monitoring may be required.

Liver

Use With Care

Use cautiously. Liver function monitoring may be required.

Alcohol

Use With Care

Caution is advised when consuming alcohol with this medicine.

Driving

Use With Care

Use caution while driving until you know how this medicine affects you.

Frequently Asked Questions

Product Specifications

BrandDuopharma
ManufacturerDuopharma
ClassificationPrescription medicine
Ingredients / Active IngredientsOmeprazole
Pack Size14s, 7s
Shelf LifeUse this product before the expiry date stated on the packaging. Do not use the medicine if the expiry date has passed.

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