
Acelong R Tab
Skn Organics (P) Ltd. - Tablet - 200mg + 20mg - 10 S
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Diclofenac (75mg) + Serratiopeptidase (15mg) + Famotidine (20mg)
Delivery across India. Free above ₹999; ₹49 from ₹499, ₹99 below. Chennai express delivery is chargeable.
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Fenlong-S Tablet is used for fenlong S Tablet is used for pain relief and fever. It relieves pain and inflammation in conditions like headache, muscle pain, dental pain or joint pain.
Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated September 2026
Fenlong-S Tablet contains Diclofenac (75mg) + Serratiopeptidase (15mg) + Famotidine (20mg). It belongs to the Non-steroidal anti-inflammatory drug, Enzyme / disease-modifying anti-rheumatic agent and Antacid / H2 blocker class of medicines.
Fenlong S Tablet is a non-steroidal anti-inflammatory drug (NSAID). It works by blocking the release of certain chemical messengers that cause fever, pain and inflammation (redness and swelling).
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 is to be taken with food.
Take it exactly as your doctor prescribed. Do not change the dose or stop early on your own.
Take it as soon as you remember. If your next dose is almost due, skip the one you missed — never take two doses together to catch up.
An overdose of this medicine can cause stomach bleeding, kidney failure, drowsiness and fits. It can seriously suppress the bone marrow and damage the liver. It can cause severe loose motions or constipation and disturb the body's salt balance. Do not wait for symptoms to appear — go to the nearest emergency department and take the pack or strip with you.
Most side effects of Fenlong-S are mild and settle as the body adjusts. Reported side effects include:
Stop the medicine and seek help immediately for a rash, swelling of the face or lips, wheezing or difficulty breathing. Tell your doctor about any side effect that persists or worries you.
| Pregnancy | Fenlong S Tablet may be unsafe to use during pregnancy.<br>Animal studies have shown adverse effects on the foetus, however, there are limited human studies. The benefits from use in pregnant women may be acceptable despite the risk. Please consult your doctor. |
|---|---|
| Breastfeeding | Fenlong S Tablet is safe to use during lactation. Human studies have shown that either the drug does not pass into the breastmilk in significant amount or is not expected to cause toxicity to the baby. |
| Alcohol | Taking Ibuprofen with alcohol increases the risk of stomach bleeding. |
| Driving | May cause drowsiness or affect your concentration. Do not drive until you know how it affects you. |
| Kidney | Fenlong S Tablet should be used with caution in patients with kidney disease. Dose adjustment of Fenlong S Tablet may be needed. Please consult your doctor.<br>Use of Fenlong S Tablet is not recommended in patients with severe kidney disease. Long term use of this medicine can affect the kidney function. |
| Liver | Fenlong S Tablet should be used with caution in patients with liver disease. Dose adjustment of Fenlong S Tablet may be needed. Please consult your doctor.<br>Use of Fenlong S Tablet is not recommended in patients with severe liver disease. |
| Habit forming | No |
Take it with or just after food, and for the shortest time that works. Stop and seek urgent care for black or tarry stools, vomiting blood, or severe stomach pain — this group can cause bleeding from the stomach. Long or high-dose use raises the risk of heart attack, stroke and kidney injury, particularly in older people and those already at risk. Avoid if you are dehydrated or have an illness with vomiting or loose motions — the kidneys are vulnerable then. Must be avoided in the last three months of pregnancy. Medicines that suppress the immune system need regular blood tests — do not miss them. Report fever, sore throat, mouth ulcers or unusual bruising promptly if you are on an immune-suppressing medicine. Tell your doctor about any infection, and before any vaccination. Methotrexate for arthritis is taken ONCE A WEEK. Taking it daily by mistake is dangerous — check the day on your pack. This is for short-term relief. See a doctor if you need it most days for more than a couple of weeks. Seek urgent care for chest pain that spreads to the arm or jaw, comes with sweating or breathlessness — do not assume it is acidity. Antacids interfere with the absorption of many other medicines. Take them at least two hours apart from anything else.
Not for anyone with a known allergy to this medicine or to any ingredient in the pack. Not for people with an active stomach ulcer, severe kidney or heart failure, or asthma triggered by aspirin or anti-inflammatory painkillers. Not in the third trimester of pregnancy. Not for people with an active serious infection, or with severe liver or bone-marrow disease. Several of these medicines must not be used in pregnancy. Magnesium-containing antacids are avoided in significant kidney disease.
Combining with a blood thinner or aspirin sharply raises the bleeding risk. Reduces the effect of blood pressure medicines and water tablets, and together with them can harm the kidneys. Never take two anti-inflammatory painkillers at the same time. Tell your doctor about all other medicines, especially anti-inflammatory painkillers and antibiotics. Live vaccines are generally avoided while on immune-suppressing treatment. Reduces the absorption of thyroid tablets, iron, and several antibiotics — separate them by at least two hours.
Store below 30°C in the original pack, away from direct sunlight and moisture. Keep out of the reach of children.
Use the lowest dose for the shortest period. If you need a painkiller regularly, see your doctor rather than continuing on your own. Paracetamol is the safer choice for simple fever and headache. Keep every monitoring blood test appointment. Carry a note of the medicine and its schedule, especially for weekly dosing. Take it after meals and at bedtime when symptoms are worst. Avoid late heavy meals, and raise the head of your bed if symptoms wake you at night.

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The information on Fenlong-S Tablet is compiled from the manufacturer's prescribing information and the sources below, and is reviewed by a registered medical practitioner. It does not replace advice from your own doctor.