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HAPPI 20MG I.V INJECTION
HAPPI 20MG I.V INJECTION
HAPPI 20MG I.V INJECTION
HAPPI 20MG I.V INJECTION belongs to the class of proton pump inhibitors. It is used in the treatment of Gastro-oesophageal reflux disease (GERD), duodenal/gastric ulcers, and Zollinger-Ellison syndrome. It contains rabeprazole, which help decrease the amount of acid in the stomach. Some of the common side effects include headache, diarrhoea, constipation, abdominal pain, flatulence, vomiting, nausea, etc.
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Written By Santoshini Reddy G , M Pharmacy
Reviewed By Veda Maddala , M Pharmacy
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Side effects of Happi 20mg I.v Injection
Dealing with Medication-Induced Headache:
  • Hydrate your body: Drink enough water to prevent dehydration and headaches.
  • Calm Your Mind: Deep breathing and meditation can help you relax and relieve stress.
  • Rest and Recharge: Sleep for 7-8 hours to reduce headache triggers.
  • Take rest: lie down in a quiet, dark environment.
  • Cold or warm compresses can help reduce tension.
  • Stay Upright: Maintain good posture to keep symptoms from getting worse.
  • To treat headaches naturally, try acupuncture or massage therapy.
  • Over-the-counter pain relievers include acetaminophen and ibuprofen.
  • Prescription Assistance: Speak with your doctor about more substantial drug alternatives.
  • Severe Headaches: Seek emergency medical assistance for sudden, severe headaches.
  • Frequent Headaches: If you get reoccurring headaches, consult your doctor.
  • Headaches with Symptoms: Seek medical attention if your headaches include fever, disorientation, or weakness.
Here are the steps to cope with constipation as a side effect of medication:
  • Inform your doctor about your constipation symptoms. They may adjust your medication or advise alternative treatments.
  • Stay hydrated by drinking sufficient of water (at least 8-10 glasses a day) to help soften stool and promote bowel movements.
  • Increase fibre intake by eating foods high in fibre, such as fruits, whole grains, vegetables and legumes, to help bulk up the stool.
  • Establish a bowel routine by trying to go to the bathroom at the same time each day to train your bowels.
  • Engaging in regular exercise, like walking or yoga, can support in bowel movement stimulation.
  • Consult your doctor if constipation persists, and discuss alternative treatments or adjustments to your medication.
Here are the precise steps to cope with diarrhoea caused by medication usage:
  • Inform Your Doctor: Notify your doctor immediately about your diarrhoea symptoms. This allows them to adjust your medication or provide guidance on managing side effects.
  • Stay Hydrated: Drink plenty of fluids to replace lost water and electrolytes. Choose water, clear broth, and electrolyte-rich drinks. Avoid carbonated or caffeinated beverages to effectively rehydrate your body.
  • Follow a Bland Diet: Eat easy-to-digest foods to help firm up your stool and settle your stomach. Try incorporating bananas, rice, applesauce, toast, plain crackers, and boiled vegetables into your diet.
  • Avoid Trigger Foods: Steer clear of foods that can worsen diarrhoea, such as spicy, fatty, or greasy foods, high-fibre foods, and dairy products (especially if you're lactose intolerant).
  • Practice Good Hygiene: Maintain good hygiene to prevent the spread of infection. To stay healthy, wash your hands frequently, clean and disinfect surfaces regularly, and avoid exchanging personal belongings with others.
  • Take Anti-Diarrheal Medications: If your doctor advises, anti-diarrheal medications such as loperamide might help manage diarrhoea symptoms. Always follow your doctor's directions.
  • Keep track of your diarrhoea symptoms. If they don't get better or worse or are accompanied by severe stomach pain, blood, or dehydration signs (like extreme thirst or dark urine), seek medical help.
Here are the steps to manage Gastrointestinal Air and Swelling (GAS) caused by medication:
  • Tell your doctor about your GAS symptoms. They may change your medication regimen or prescribe additional drugs to help you manage them.
  • To manage GAS symptoms, eat a balanced diet of fibre, vegetables, and fruits.
  • Drink enough water throughout the day to avoid constipation and treat GAS symptoms.
  • Regular exercise like yoga and walking may help stimulate digestion and alleviate GAS symptoms.
  • Take probiotics only if your doctor advises, as they may help alleviate GAS symptoms by promoting gut health.
  • Take medication for GAS symptoms only if your doctor advises, as certain medications can interact with your existing prescriptions or worsen symptoms.
  • If symptoms persist, worsen, or are accompanied by severe abdominal pain, vomiting, or bleeding, seek immediate medical attention.
  • Apply a hot/cold pack to the affected area.
  • Doing gentle exercises can help cope with pain by stretching muscles.
  • Get enough sleep. It helps enhance mood and lower pain sensitivity.
  • Avoid alcohol, smoking and tobacco as they can increase pain.
  • Follow a well-balanced meal.
  • Meditation and massages may also help with pain.
  • Drink warm fluids such as warm water with honey, broth, soup or herbal tea to soothe sore throat.
  • Gargle with warm salt water.
  • Suck on lozenges to increase the production of saliva and soothe your throat.
  • Use a humidifier to soothe sore throat as it adds moisture to the air and makes breathing easier.
  • Drink water or other clear fluids.
  • To prevent worsening of pain, limit intake of tea, coffee, or alcohol.
  • Include bland foods like rice, toast, crackers, and rice in your diet.
  • Avoid lying down immediately after eating as it may cause indigestion or heartburn.
  • Avoid acidic and spicy food as it may cause indigestion.

Drug-Drug Interactions

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RabeprazoleErlotinib
Critical
RabeprazoleRilpivirine
Critical

Drug-Drug Interactions

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RabeprazoleErlotinib
Critical
How does the drug interact with Happi 20mg I.v Injection:
When used in combination with erlotinib, Happi 20mg I.v Injection may prevent the absorption of erlotinib into the circulation, which might make erlotinib less effective in treating cancer.

How to manage the interaction:
Taking Happi 20mg I.v Injection with Erlotinib is not recommended as it can result in an interaction, it should be taken only if a doctor has advised it. Do not stop using any medications without consulting a doctor.
RabeprazoleRilpivirine
Critical
How does the drug interact with Happi 20mg I.v Injection:
Co-administration of Happi 20mg I.v Injection can make Rilpivirine less effective by reducing its absorption in the body.

How to manage the interaction:
Taking Happi 20mg I.v Injection with Rilpivirine is not recommended, but can be taken if prescribed by the doctor. Do not discontinue the medications without consulting a doctor.
RabeprazoleClopidogrel
Severe
How does the drug interact with Happi 20mg I.v Injection:
Taking Clopidogrel with Happi 20mg I.v Injection can reduce the effectiveness of Clopidogrel.

How to manage the interaction:
Taking Clopidogrel and Happi 20mg I.v Injection together possibly has an interaction, but you can take these medications together if a doctor has advised it. Do not stop using any medications without talking to a doctor.
RabeprazoleMethotrexate
Severe
How does the drug interact with Happi 20mg I.v Injection:
Co-administration of Methotrexate with Happi 20mg I.v Injection can increase the blood levels and side effects of Methotrexate.

How to manage the interaction:
Although there is a possible interaction between Happi 20mg I.v Injection and Methotrexate, you can take these medicines together if prescribed by a doctor. Do not stop using any medications without consulting a doctor.
RabeprazoleDasatinib
Severe
How does the drug interact with Happi 20mg I.v Injection:
Taking Happi 20mg I.v Injection together with Dasatinib results in decreased levels of Dasatinib and its effectiveness.

How to manage the interaction:
Although taking Happi 20mg I.v Injection and Dasatinib together can result in an interaction, it can be taken if a doctor has prescribed it. Do not discontinue any medications without a doctor's advice.
RabeprazoleIdelalisib
Severe
How does the drug interact with Happi 20mg I.v Injection:
When Happi 20mg I.v Injection and Idelalisib are taken in combination, Idelalisib may increase the level or impact of Happi 20mg I.v Injection.

How to manage the interaction:
Although taking Happi 20mg I.v Injection and Idelalisib together can result in an interaction, it can be taken if a doctor has prescribed it. Do not discontinue any medications without a doctor's advice.
RabeprazolePhenytoin
Severe
How does the drug interact with Happi 20mg I.v Injection:
When Phenytoin and Happi 20mg I.v Injection are taken in combination, Phenytoin will reduce the concentration or impact of Happi 20mg I.v Injection.

How to manage the interaction:
Although taking Phenytoin and Happi 20mg I.v Injection together can result in an interaction, it can be taken if a doctor has prescribed it. Do not discontinue any medications without a doctor's advice.
RabeprazoleGefitinib
Severe
How does the drug interact with Happi 20mg I.v Injection:
Taking Happi 20mg I.v Injection together with Gefitinib results in decreased levels of gefitinib in your blood. This can result in a decreased effectiveness of gefitinib in treating the disease.

How to manage the interaction:
Although taking Happi 20mg I.v Injection and Gefitinib together can possibly result in an interaction, it can be taken if your doctor has prescribed it. To lessen the effects of the interaction, it is advised that you take gefitinib 12 hours before or 12 hours after Happi 20mg I.v Injection. Do not discontinue any medications without a doctor's advice.
RabeprazoleAtazanavir
Severe
How does the drug interact with Happi 20mg I.v Injection:
Co-administration of Atazanavir's blood levels and absorption can both be affected by Happi 20mg I.v Injection, which decreases the atazanavir's ability to treat HIV.

How to manage the interaction:
Although taking Happi 20mg I.v Injection and atazanavir together can result in an interaction, it can be taken if a doctor has prescribed it. Do not discontinue any medications without a doctor's advice.
RabeprazolePazopanib
Severe
How does the drug interact with Happi 20mg I.v Injection:
Taking Happi 20mg I.v Injection together with Pazopanib can result in a decreased effectiveness of Pazopanib in treating the disease.

How to manage the interaction:
Although taking Happi 20mg I.v Injection and Pazopanib together can result in an interaction, but can be taken together if prescribed by a doctor. However, if you experience any unusual symptoms contact your doctor immediately. Do not stop using any medications without talking to a doctor.

Drug-Food Interactions

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No Drug - Food interactions found in our database. Some may be unknown. Consult your doctor for what to avoid during medication.

Drug-Food Interactions

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Author Details

Santoshini Reddy GDoctor badge

Written By

Santoshini Reddy G

M Pharmacy

Veda MaddalaDoctor badge

Reviewed By

Veda Maddala

M Pharmacy

Last Updated

Oct 14, 2025 | 1:09 PM IST

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