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Opel 100 MG Tablet

Manufactured byStanford Laboratories

Opel 100 MG Tablet is used to lower the amount of acid produced in the stomach. It helps in the treatment of gastroesophageal reflux disease and other conditions caused by excess acid production in the stomach. It has an advantage of once-daily dosing and should be consumed at least 1 hour before breakfast.

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Side effects

Major & minor side effects for Opel 100 MG Tablet

  • Abdominal pain
  • Fever
  • Joint pain
  • Sore throat
  • Loss of appetite
  • Constipation
  • Diarrhea
  • Difficulty in breathing
  • Dizziness
  • Muscle pain
  • Drowsiness

Uses of Opel 100 MG Tablet

What is it prescribed for?

  • Gastroesophagal Reflux Disease
  • Zollinger-Ellison Syndrome
  • Duodenal Ulcer
  • Helicobacter pylori Infection
  • Erosive Esophagitis
Read More

Commonly asked questions

  • Onset of action
    The peak effect of this medicine can be observed within 1 to 2 hours of administration.
  • Duration of effect
    This medicine is excreted primarily in urine and the effect of this medicine lasts for a duration of 72 hours.
  • Safe with alcohol?
    Interaction with alcohol is unknown. It is advisable to consult your doctor before consumption.
  • Is it habit forming?
    No habit forming tendency has been reported.
  • Usage in pregnancy?
    This medicine can be used during pregnancy only if the benefits outweigh the risks.
  • Usage while breast-feeding?
    This medicine is not recommended for breastfeeding women.


Avoid if you have a known allergy to Opel 100 MG Tablet or any medicine of the same class.
Warnings for special population


This medicine can be used during pregnancy only if the benefits outweigh the risks.


This medicine is not recommended for breastfeeding women.
General warnings

Clostridium difficile associated Diarrhea

Use of Opel 100 MG Tablet or other medicines of the same class may increase the risk of gastrointestinal infections like Clostridium Difficile-associated Diarrhea.

Cutaneous and Systemic Lupus Erythematosus

Opel 100 MG Tablet may be associated with lupus (systemic and cutaneous). Signs and symptoms such as extreme tiredness, painful joints, rashes and lesions on the skin after consuming omeprazole should be reported immediately to the doctor and Opel 100 MG Tablet should be discontinued.

Impaired liver function

Use with caution if you suffer from liver impairment. A daily dose of 10 to 20 mg is sufficient.

Bone fracture

Use of high dose of Opel 100 MG Tablet for prolonged duration may increase the risk of bone fractures especially in older patients and women. Supplements like Calcium citrate and Vitamin D should be taken after consulting the doctor.

Missed Dose

Take the missed dose as soon as possible. If it is almost time for the next dose, skip the dose and follow the regular schedule.


Seek emergency medical treatment or contact the doctor in case of an overdose.
All drugs interact differently for person to person. You should check all the possible interactions with your doctor before starting any medicine.
Interaction with Alcohol


Interaction with alcohol is unknown. It is advisable to consult your doctor before consumption.


Interaction with alcohol is unknown. It is advisable to consult your doctor before consumption.
Interaction with Medicine





Disease interactions


The risk of bone fractures is more if you are on high doses and long-term therapy. Use with caution if you are at risk of developing bone fractures and lower doses for a short duration of time should be considered.
Food interactions
Information not available.
Lab interactions
Information not available.
Take Opel 100 MG Tablet at least half an hour before breakfast. Do not consume in larger amounts than advised. Consult the doctor if you experiences any undesirable effects.

Food timings: Information not available

Administration time: Information not available

Sleep inducing: Information not available

How it works
Opel 100 MG Tablet works by interfering with the final step of acid release in the stomach. Thus, acidity in the stomach is decreased and ulcer healing process is fastened.
Legal Status







Proton pump inhibitors


Schedule H

Omeprazole: Uses, Side Effects & Dosage Guide - Drugs.com [Internet]. Drugs.com. 2017 [cited 1 March 2017]. Available from:


Omeprazole: MedlinePlus Drug Information [Internet]. Medlineplus.gov. 2017 [cited 1 March 2017]. Available from:


[Internet]. 2017 [cited 1 March 2017]. Available from:


Prescribing medicines in pregnancy database [Internet]. Therapeutic Goods Administration (TGA). 2017 [cited 1 March 2017]. Available from:


TOXNET [Internet]. Toxnet.nlm.nih.gov. 2017 [cited 1 March 2017]. Available from:

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Information on this page was last updated on 6 Mar 2017


We’ve made all possible efforts to ensure that the information provided here is accurate, up-to-date and complete, however, it should not be treated as a substitute for professional medical advice, diagnosis or treatment. Practo only provides reference source for common information on medicines and does not guarantee its accuracy or exhaustiveness. The absence of a warning for any drug or combination thereof, should not be assumed to indicate that the drug or combination is safe, effective, or appropriate for any given patient. Practo does not assume any responsibility for any aspect of healthcare administered with the aid of information provided above. If you have any doubts about your medication then we strongly recommend that you consult with your doctor, nurse or healthcare provider. See detailed T&C here.