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Fenlong S Tablet is a pain relieving medicine. It is used in various conditions such as muscle ache, back pain, joint pain, menstrual cramps, and toothache. It also promotes healing at the site of inflammation.

Written By Dr. Anuj Saini, MMST, MBBS,
Reviewed By Dr. Sachin Gupta, MD Pharmacology, MBBS,
Last updated on 22 Jul 2026 | 01:04 AM (IST)
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Fenlong S Tablet image
Fenlong S Tablet image

Product introduction

Fenlong S Tablet can be taken with or without food. The dose and duration will depend on what you are taking it for and how well it helps your symptoms. You should keep taking the medicine even if you feel better until the doctor says it is alright to stop using it.

Using this medicine may cause few common side effects such as nausea, vomiting, diarrhea, constipation, and loss of appetite. If you experience any such side effects that does 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 symptoms. 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. It may also affect, or be affected by, some other medicines you are using so let your doctor know 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 S Tablet

Benefits of Fenlong S Tablet

Pain relief
Fenlong S Tablet is used to relieve pain, swelling, and stiffness caused by osteoarthritis, rheumatoid arthritis and ankylosing spondylitis. It is also used to reduce muscle and back pain, menstrual pain, ear or throat pain and works best if it is used when the first signs of pain occur. Fenlong S Tablet promotes the overall healing process and speeds up recovery. Famotidine, a constituent present in Fenlong S Tablet prevents acidity that may arise due to this medicine.

Side effects of Fenlong S 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 S
  • Nausea
  • Vomiting
  • Diarrhea
  • Constipation
  • Loss of appetite

How to use Fenlong S 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 S Tablet may be taken with or without food.

How Fenlong S Tablet works

Fenlong S Tablet is a combination of three medicines. Diclofenac is a non-steroidal anti-inflammatory drugs (NSAID). It works by blocking the release of certain chemical messengers that cause pain and inflammation (redness and swelling). Famotidine is an H2 blocker (antacid). It works by reducing the amount of acid in the stomach which helps in relieving stomach acid, indigestion, and heartburn. Serratiopeptidase is an enzyme that works by breaking down the chemical messengers involved in pain and inflammation (redness and swelling).

Quick tips

  • Fenlong S Tablet is used to treat various painful conditions.
  • It should be taken with, or straight after, a meal or snack. This helps to reduce the risk of stomach upset.
  • Drink 6 to 8 full glasses of water daily to help prevent constipation while you are taking this medicine. Do not use a stool softener (laxative) without first asking your doctor.
  • Stick to simple meals and avoid spicy rich food in order to avoid feeling sick (nausea).
  • If you have asthma, symptoms such as wheeze or breathlessness might become worse by Fenlong S Tablet. If this happens to you, consult your doctor immediately.

Safety advice

Alcohol

Alcohol

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

Pregnancy

UNSAFE
Fenlong S 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 S 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 S Tablet may decrease alertness, affect your vision, or make you feel sleepy and dizzy. Do not drive if these symptoms occur.
Kidney

Kidney

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

Liver

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

Frequently asked questions

Fenlong S Tablet is a pain-relieving medicine used to treat conditions such as muscle aches, back pain, joint pain, menstrual cramps, and toothache. It also helps promote healing at the site of inflammation.
Yes, Fenlong S Tablet is commonly prescribed to relieve pain and stiffness in osteoarthritis, rheumatoid arthritis, and other inflammatory joint conditions.
Doctors may prescribe Fenlong S Tablet to control pain, swelling, and speed up healing after surgery or trauma to muscles or bones.
Yes, Fenlong S Tablet is often given by dentists to manage dental pain, swelling, and inflammation after tooth extraction or dental procedures.
The exact time Fenlong S Tablet to relieve pain is not known. However, most people start to feel pain relief within 60 minutes after swallowing the tablet by mouth.
Consult your doctor if pain does not improve, gets worse, or if you develop new symptoms like stomach pain, black stools, or severe indigestion while on Fenlong S Tablet.

Fact Box

Habit Forming

No

Therapeutic Class

PAIN ANALGESICS

References

  1. Furst DE, Ulrich RW, Prakash S, et al. Nonsteroidal Anti-Inflammatory Drugs, Disease-Modifying Antirheumatic Drugs, Nonopioid Analgesics, & Drugs Used in Gout. In: Katzung BG, Masters SB, Trevor AJ (Editors). Basic and Clinical Pharmacology. 11th ed. New Delhi, India: Tata McGraw Hill Education Private Limited; 2009. pp. 621-642.
  2. Hoogerwerf WA, Pasricha PJ. Pharmacotherapy of Gastric Acidity, Peptic Ulcers, and Gastroesophageal Reflux Disease. In: Brunton LL, Chabner BA, Knollmann BC, editors. Goodman & Gilman’s: The Pharmacological Basis of Therapeutics. New York, New York: McGraw-Hill Medical; 2011. pp. 967-981.
  3. McQuaid KR. Drugs Used in the Treatment of Gastrointestinal Diseases. In: Katzung BG, Masters SB, Trevor AJ (Editors). Basic and Clinical Pharmacology. 11th ed. New Delhi, India: Tata McGraw Hill Education Private Limited; 2009. pp. 1067-1101.
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User feedback

Once A Day
60%
Twice A Day
40%
Pain relief
83%
Dental pain
17%
Excellent
60%
Average
40%
No Side Effect
50%
Nausea
25%
Vomiting
25%
With food
100%
Average
67%
Not Expensive
33%
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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 S 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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