HAPPI 20mg Injection

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Rabeprazole Sodium 20mg
By Cadila Healthcare Ltd (Zydus)
Prescription Needed
(per unit)
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Drug Information for HAPPI 20mg Injection

What is HAPPI 20mg Injection used for?

HAPPI 20mg Injection is used for the treatment of following conditions:

  • Gastro-oesophageal reflux disease
  • Duodenal ulcer
  • Heartburn
  • Benign gastric ulcer
  • Zollinger-Ellison syndrome

HAPPI 20mg Injection may also be prescribed for other conditions as determined by the doctor.

How does HAPPI 20mg Injection work?

HAPPI 20mg Injection belongs to the class of drugs called proton-pump inhibitors. This drug acts by inhibiting gastric acid secretion by inhibiting the activity of proton channels in the GI tract. Thus, it helps in relieving the symptoms associated with gastric disorders.

How to use HAPPI 20mg Injection ?

The dosage and the drug form depend on the age, weight and medical condition of an individual. Use HAPPI 20mg Injection as prescribed by your doctor.

  • Swallow the tablet/capsule Do not crush or chew the tablet/capsule. Take the drug on an empty stomach, at least 30 minutes before meals.
  • HAPPI 20mg Injection injection should be administered only under the medical supervision.

If you miss a dose of HAPPI 20mg Injection , please consult the doctor immediately.

What are the drugs that interact with HAPPI 20mg Injection ?

Drugs that interact with HAPPI 20mg Injection include the following:

  • Ampicillin
  • Aspirin
  • Atazanavir
  • Atazanavir
  • Clopidogrel
  • Digoxin
  • Itraconazole
  • Ketoconazole
  • Methotrexate
  • Nelfinavir
  • Rilpivirine

This is not a comprehensive list of drug interactions. Consult your doctor to know more about other possible drug interactions.

What are the side effects of HAPPI 20mg Injection ?

The following are the most common side effects of HAPPI 20mg Injection :

  • Headache
  • Stomach pain
  • Sore throat
  • Infection
  • Constipation
  • Diarrhoea

The following are the severe side effects, and you may require immediate medical attention:

  • Seizures
  • Irregular heartbeat
  • Muscle weakness
  • Tremors
  • Watery stools

This is not a complete list of side effects and others may occur. Please consult your doctor to know more about other possible side effects.

What special precautions should be followed while using HAPPI 20mg Injection ?

  • Avoid using the medicine if you are allergic to HAPPI 20mg Injection or similar drugs.
  • Do not stop using the medication abruptly unless instructed by the doctor. Stopping the medication suddenly may cause the illness to return.
  • Do not exceed the dose more than prescribed.
  • Avoid consumption of alcohol as it may alter the absorption of HAPPI 20mg Injection .
  • Avoid HAPPI 20mg Injection during pregnancy or breastfeeding because the safe use of the drug is not yet established.
  • Be cautious while using HAPPI 20mg Injection if you have any kidney or liver impairment.

You are advised not to use HAPPI 20mg Injection if

  • it has passed the expiry date of the medicine printed on the pack.
  • the foil or packaging is torn or shows signs of tampering, or there is discolouration.

What should you tell your doctor before using HAPPI 20mg Injection ?

  • Tell your doctor if you have any history of heart, liver or kidney diseases.
  • Inform the doctor if you are taking any other drugs, OTC medications, herbal products or nutritional supplements.
  • Notify your doctor if you are pregnant or breastfeeding.

Frequently Asked questions about HAPPI 20mg Injection

  1. Is it safe to use HAPPI 20mg Injection in case of osteoporosis?
  2. No. Use of HAPPI 20mg Injection increases the risk of fractures, so it is unsafe to use HAPPI 20mg Injection in osteoporosis condition. Please consult your doctor.

  3. What is the usual dose of HAPPI 20mg Injection for treating duodenal ulcer?
  4. The usual dose of HAPPI 20mg Injection for treating duodenal ulcer is 20 mg/day orally. However, please consult your doctor for dosage related information.

  5. Is HAPPI 20mg Injection recommended in the treatment ofHelicobacter pyloriinfection?
  6. Yes. HAPPI 20mg Injection can be used to treatHelicobacter pyloriinfection when recommended by the doctor.

  7. Do I need to be monitored for any laboratory parameters while using HAPPI 20mg Injection ?
  8. Yes, it is advised to monitor for blood electrolyte levels and bone mineral density regularly while using HAPPI 20mg Injection .


The contents of this website are for informational purposes only and not intended to be a substitute for professional medical advice, diagnosis, or treatment.  Please seek the advice of a physician or other qualified health provider with any questions you may have regarding a medical condition. Do not disregard professional medical advice or delay in seeking it because of something you have read on this website.

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