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Fenlong Tablet is a medicine used in the treatment of abdominal pain. It helps reduce the amount of acid in the stomach and provide relief from acid-related indigestion and heartburn. It also blocks the release of certain chemical messengers that cause pain, inflammation, and fever.

Written By Dr. Swati Mishra, BDS,
Reviewed By Dr. Rajeev Sharma, MBA, MBBS,
Last updated on 22 May 2026 | 06:22 PM (IST)
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General Information

The content is shown in English
Fenlong Tablet image
Fenlong Tablet image
Fenlong Tablet image

Product introduction

Fenlong Tablet can be taken with or without food. Take it in the dose and duration directed by your doctor. Take it regularly and do not discontinue using it until the doctor tells you it is alright to stop.

Using of the medicine may cause some common side effects like nausea, vomiting, diarrhea, constipation, and loss of appetite. If you experience any of such side effects that do not go away or get worse, you should let your doctor know. Your doctor may be able to suggest ways of preventing or reducing the side effects. In general, you should try to use the smallest amount necessary to control your symptoms.

Before using the medicine, you should tell your doctor if you have any other medical conditions or disorders. To make sure it is safe for you, you should also tell your doctor all the other medicines you are taking. It should be used with caution in patients who are alcoholic or have liver or kidney disease. Pregnant and breastfeeding women should consult their doctors first before using the medicine.

Uses of Fenlong Tablet

Benefits of Fenlong Tablet

Abdominal pain
Fenlong Tablet gives relief from abdominal pain and works best if they are used when the first signs of pain occur. It slows the natural movements of the gut and relaxes the muscles in the stomach and intestines. By doing this, it relieves stomach cramps, pain, bloating and discomfort. Fenlong Tablet also reduces acidity and gives relief from heartburn. Take this medicine before meals and at bedtime or as directed by your doctor.

Side effects of Fenlong Tablet

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them
Common side effects of Fenlong
  • Nausea
  • Vomiting
  • Diarrhea
  • Constipation
  • Loss of appetite

How to use Fenlong Tablet

Take this medicine in the dose and duration as advised by your doctor. Swallow it as a whole. Do not chew, crush or break it. Fenlong Tablet may be taken with or without food.

How Fenlong Tablet works

Fenlong Tablet is a combination of two medicines: Diclofenac and Famotidine which relieve abdominal pain. Diclofenac is a non-steroidal anti-inflammatory drug (NSAID). It works by preventing the formation of chemicals responsible for fever, pain, and inflammation (redness and swelling). Famotidine is an H2 blocker (type of antacid). It works by reducing the amount of acid in the stomach which helps to get relief of acid-related indigestion and heartburn.

Quick tips

  • You have been prescribed Fenlong Tablet to get relief from abdominal pain and acidity.
  • It is best to take it when the first sign of pain occurs.
  • Avoid taking any antacid at least 2 hours before or after taking this medicine.
  • Incorporate the folowing lifestyle changes in order to prevent acidity and indigestion:
    1. Make sure you eat regular meals and drink plenty of water.
    2. Avoid spicy and fatty fried food.
    3. Lose weight if you are obese.
    4. If you are a smoker, consider giving up.
    5. Don't drink too much alcohol.
    6. Do not go to bed immediately after taking a meal. Sit in a relaxed position for some time for better digestion.

Safety advice

Alcohol

Alcohol

UNSAFE
Do not drink alcohol while you are taking this medicine. Fenlong Tablet may cause excessive drowsiness when taken with alcohol.
Pregnancy

Pregnancy

UNSAFE
Fenlong Tablet is highly unsafe during pregnancy. It can cause serious harm to the unborn baby, including birth defects and pregnancy loss. Do not use this medicine if you are pregnant or planning to become pregnant.
Breast feeding

Breast feeding

CONSULT YOUR DOCTOR
Fenlong Tablet may be unsafe to use during breastfeeding. Limited human data suggests that the drug may pass into the breastmilk and harm the baby. It should be used only if the expected benefit outweighs the potential risk. Please consult your doctor.
Driving

Driving

UNSAFE
Fenlong Tablet may decrease alertness, affect your vision, or make you feel sleepy and dizzy. Do not drive if these symptoms occur.
Fenlong Tablet may cause headaches, blurred vision, dizziness or drowsiness in some patients. This may affect your ability to drive.
Kidney

Kidney

CAUTION
Fenlong Tablet should be used with caution in patients with kidney disease. Dose adjustment may be needed.
Liver

Liver

CAUTION
Fenlong Tablet should be used with caution in patients with liver disease. Dose adjustment may be needed.

Fact Box

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Disclaimer

Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.

Marketer details

Name: SKN Organics
Address: PLOT NO 1A GROUND & 1ST FLOOR AARTHI INDUSTRIAL ESTATE, MOULIVAKKAM, CHENNAI CHENNAI TN 600116 IN , - , .

Vendor Details

Country of origin: India
A licensed vendor partner from your nearest location will deliver Fenlong 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
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