



Happi 40 Tablet
Written By Dr. Sakshi Jain, MS, BDS,
Reviewed By Dr. Rajeev Sharma, MBA, MBBS,
Last updated on 25 Nov 2025 | 03:05 PM (IST)



Contains same composition
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General Information





Product introduction
Happi 40 Tablet medicine should be taken one hour before a meal, preferably in the morning. The dose will depend on your underlying condition and how you respond to the medicine. Try to take it regularly at the same time each day as advised by your doctor. You should keep on taking it as prescribed even if your symptoms disappear quickly. You may be able to help improve your symptoms by eating smaller meals more often and avoiding caffeinated drinks like tea and coffee, and spicy or fatty foods.
This medicine's most common side effects include nausea, vomiting, headache, dizziness, flatulence, diarrhea, and stomach pain. These tend to be mild but talk to your doctor if they bother you or do not go away. The risk of side effects may increase the longer you take this medicine. Long-term use (more than 1 year) may increase your risk for bone fractures, especially with higher doses. Talk to your doctor about ways to prevent bone loss (osteoporosis), like taking calcium and vitamin D supplements.
Low blood magnesium levels (hypomagnesemia) have been seen in some people taking this medicine for 3 months or more. This may lead to tiredness, confusion, dizziness, muscle twitches, and an irregular heartbeat. Your doctor may monitor your magnesium levels to prevent this.
Happi 40 Tablet is not suitable for some people. Before taking this medicine, you need to tell your doctor if you have severe liver problems, are taking medicines for HIV, have ever had an allergic reaction to similar medicines in the past, or suffer from bone loss (osteoporosis). Pregnant or breastfeeding women should also consult their doctor before taking it. Avoid drinking alcohol as it makes your stomach produce excessive acid and can worsen your symptoms. Do not drive or use machinery or tools, if this medicine makes you feel dizzy or sleepy.
Uses of Happi Tablet
- Acidity
- Gastroesophageal reflux disease (Acid reflux)
- Peptic ulcer disease
- Treatment of Zollinger-Ellison syndrome
Benefits of Happi Tablet
Happi 40 Tablet helps reduce excessive stomach acid, providing quick and lasting relief from acidity. It eases symptoms like burning sensations in the chest or stomach, bloating, and sour taste in the mouth, helping you feel more comfortable after meals or during the day.
In GERD (acid reflux), Happi 40 Tablet helps prevent stomach acid from flowing back into the food pipe, which can cause irritation and discomfort. It reduces symptoms such as heartburn, chest discomfort, and regurgitation, allowing the food pipe to heal and improving overall digestion.
Happi 40 Tablet supports the healing of ulcers in the stomach and small intestine by lowering acid levels. It protects the stomach lining, reduces pain or burning sensations, and helps prevent ulcers from returning when taken as directed by the doctor.
Zollinger-Ellison syndrome is a rare disorder where excessive stomach acid production leads to multiple peptic ulcers. Symptoms include abdominal pain, diarrhea, and heartburn. Happi 40 Tablet By reducing the production of stomach acid, it helps alleviate symptoms such as abdominal pain, heartburn, and diarrhea. Esomeprazole also aids in the healing of peptic ulcers, which are common in this condition. By controlling the excessive acid secretion associated with Zollinger-Ellison syndrome, esomeprazole helps improve the overall digestive health and prevents complications such as gastrointestinal bleeding.
Side effects of Happi Tablet
- Headache
- Nausea
- Vomiting
- Abdominal pain
- Flatulence
- Dizziness
- Diarrhea
- Weakness
How to use Happi Tablet
How Happi Tablet works
All substitutes for Happi 40 Tablet
Rebozen 40 Tablet
Rabonik 40 Tablet
Cyra 40 Tablet
RABEloc 40 Tablet
Rabifast 40 Tablet
Quick tips
- It is a well-tolerated medicine and provides relief for a long time.
- Some healthy tips to prevent acidity from happening:
- Avoid excessive intake of carbonated beverages/soft drinks, citrus juices, fried food, caffeinated beverages like tea and coffee.
- Avoid alcohol and smoking.
- Avoid eating late at night or before bedtime.
- Inform your doctor if you get watery diarrhea, fever or stomach pain that does not go away.
- Inform your doctor if you do not feel better after taking it for 14 days as you may be suffering from some other problem that needs attention.
- Long-term use of Happi 40 Tablet can cause weak bones and a deficiency of minerals such as magnesium. Take adequate dietary intake of calcium and magnesium or their supplements as prescribed by your doctor.
- Consult your doctor right away if you develop decreased urination, edema (swelling due to fluid retention), lower back pain, nausea, fatigue, and rash or fever. These could be signs of a kidney problem.
- Happi 40 Tablet should be taken 1 hour before a meal, preferably in the morning.
- It is a well-tolerated medicine and provides relief for a long time.
- Some healthy tips to prevent acidity from happening:
- Avoid excessive intake of carbonated beverages/soft drinks, citrus juices, fried food, caffeinated beverages like tea and coffee.
- Avoid alcohol and smoking.
- Avoid eating late at night or before bedtime.
- Inform your doctor if you get watery diarrhea, fever or stomach pain that does not go away.
- Inform your doctor if you do not feel better after taking it for 14 days as you may be suffering from some other problem that needs attention.
- Long-term use of Happi 40 Tablet can cause weak bones and a deficiency of minerals such as magnesium. Take adequate dietary intake of calcium and magnesium or their supplements as prescribed by your doctor.
- Consult your doctor right away if you develop decreased urination, edema (swelling due to fluid retention), lower back pain, nausea, fatigue, and rash or fever. These could be signs of a kidney problem.
Safety advice

Alcohol

Pregnancy

Breast feeding

Driving

Kidney

Liver
Interaction with drugs
Erlotinib (Oral Route)
Methotrexate (Injection Route)
Methotrexate (Injection Route)
Methotrexate (Injection Route)
Methotrexate (Injection Route)
Frequently asked questions
Fact Box
Chemical Class
Habit Forming
Therapeutic Class
Action Class
References
- Rabeprazole. Charlotte, NC: FSC Laboratories; 1999 [revised Dec. 2014]. [Accessed 28 Mar. 2019] (online) Available from:
- Drugs and Lactation Database (LactMed) [Internet]. Bethesda (MD): National Library of Medicine (US); 2006. Rabeprazole. [Updated 2019 Jun 3]. [Accessed 20 Feb. 2020] (online) Available from:
- Central Drugs Standard Control Organisation (CDSCO). [Accessed 28 Mar. 2019] (online) Available from:
- CiplaMed. Rabeprazole sodium [Prescribing Information]. [Accessed 25 Jul. 2023] (online) Available from:
- Rabeprazole. Basking Ridge, NJ: Torrent Pharmaceuticals Limited; 2025. [Accessed 07 Jul. 2025] (online) Available from:




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Disclaimer
Marketer details
Address: Zydus Tower, Satellite Cross Roads,Ahmedabad – 380015 Gujarat, India.
Vendor Details
A licensed vendor partner from your nearest location will deliver Happi 40 Tablet. Once the pharmacy accepts your order, the details of the pharmacy will be shared with you. Acceptance of your order is based on the validity of your doctor's ℞ and the availability of this medicine.
In case of any issues, contact us
Email ID: [email protected]Phone Number: 0124-4166666
Address: 5th Floor Tower - B of the Presidency Building, 46/4 Mehrauli Gurgaon Road, Sector 14, Gurugram, Haryana-122001, India
Lab tests offered by us
- CBC (Complete Blood Count)
- FBS (Fasting Blood Sugar)
- Thyroid Profile Total (T3, T4 & TSH)
- HbA1c (Glycosylated Hemoglobin)
- PPBS (Postprandial Blood Sugar)
- Lipid Profile
- Vitamin D (25-Hydroxy)
- Urine R/M (Urine Routine & Microscopy)
- Coronavirus Covid -19 test- RT PCR
- LFT (Liver Function Test)
- KFT (Kidney Function Test)
- TSH (Thyroid Stimulating Hormone) Ultrasensitive
- ESR (Erythrocyte Sedimentation Rate)
- Uric Acid, Serum
- Vitamin B12
- CRP (C-Reactive Protein), Quantitative
- Urine C/S (Urine Culture and Sensitivity)
- Serum Electrolytes
- Serum Calcium
- Serum Creatinine
- Diabetes Screening (HbA1C & Fasting Sugar)
- KFT with Electrolytes (Kidney Function Test with Electrolytes)
- Cholesterol - Total
- Hb (Hemoglobin)
- Complete Hemogram (CBC & ESR)



















