Flexon MR Tablet: Uses, Side Effects, Composition & Dosages

Flexon MR Tablet is a non-steroidal anti-inflammatory bearing analgesic and antipyretic properties. Flexon MR is prescribed for relieving muscle and menstrual cramps, swelling, toothache, joint pain, etc. It also helps to treat joint-related health concerns like tender and stiff joints for patients suffering from osteoarthritis and rheumatoid arthritis.

Nature Non-Steroidal Anti-Inflammatory Drug (NSAID)
Composition Ibuprofen, Paracetamol, Chlorzoxazone
Uses Dysmenorrhea, Osteoarthritis, Rheumatoid Arthritis, fever and pain
Side effects Gastric or mouth ulcers, abnormal blood counts, and constipation
Precautions Chronic malnutrition, gastrointestinal bleeding, and anemia
Flexon MR Tablet

Flexon MR Tablet is an over the counter drug which does not require a prescription by the doctor but it is important to consult a doctor before starting the dosage of the medicine. Flexon MR tablet is manufactured and marketed in India by Aristo Pharmaceuticals Ltd.

Uses and Benifits of Flexon MR:

Flexon MR is a non-steroidal anti-inflammatory drug which helps to relieve pain and inflammation in the muscles. Some other health conditions which are treated by administering Flexon MR are listed below:

  • Headache
  • Fever
  • Cold
  • Back Pain
  • Toothache
  • Muscle spasm and pain
  • Body Pain
  • Gout
  • Spondylitis
  • Menstrual Pain
  • Inflammation (redness and swelling)
  • Cephalalgia
  • Febrility
  • Ear pain
  • Flu
  • Pain in nerves
  • Analgesic
  • Bursitis
  • Tendinitis
  • Sciatica
  • Torticollis

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Side Effects of Flexon MR:

Administering Flexon MR may cause the following side effects:

  • Drowsiness
  • Swollen facial features
  • Feeling of sickness
  • Gastrointestinal bleeding
  • Dizziness
  • Lightheadedness
  • Malaise
  • Skin rashes
  • Angioneurotic edema
  • Anaphylactic reactions
  • Loss of appetite
  • Flatulence
  • Constipation
  • Heartburn
  • Diarrhea
  • Dry mouth
  • Skin rash
  • Dry skin
  • Headache
  • Weakness
  • Heartburn
  • Gastric or mouth ulcers
  • Bloody or cloudy urine
  • Abnormal blood counts
  • Fatigue
  • Abdominal discomfort
  • Constipation
  • Yellow colored eyes or skin
  • Ringing or buzzing sound in the ears
  • Vomiting of blood in extreme cases

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Common Dosage of Flexon MR:

The common dose of Flexon MR prescribed by the doctor is one tablet twice a day. It is advisable to consult the doctor as the dose may vary depending on the clinical condition, age and medical history of the patient. Flexon MR Tablet should be swallowed whole without crushing or chewing Flexon MR.

  • Missed Dose : A missed dose of Flexon MR Tablet must be taken as soon as it is remembered. If the missed dose is remembered when it is almost time for the next dose, then the missed dose should be skipped. It is advisable to take the scheduled dose on time. One should not take an extra dose in order to make up for the missed dose.
  • Overdose : In case of an overdose, it is advised to seek immediate medical attention in order to avoid any adverse effects.

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Composition and Nature of Flexon MR:

Flexon MR Tablet is a combination of the following drugs:

Ibuprofen and Paracetamol are pain relievers which work by blocking the release of certain chemical messengers in the brain that cause pain and inflammation (redness and swelling). Chlorzoxazone, present in Flexon MR, acts as a muscle relaxant at the center of the brain and spinal cord to relax the muscle stiffness and spasm, enabling the movements of the muscles.

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Flexon MR Tablet Price in India

  • Flexon MR Tablet (Strip of 10 tablets)     16.8 INR

Read More: Gabapin NT Price | Intagesic MR Price

When is Flexon MR Prescribed?

Flexon MR is prescribed to cure fever and painful conditions like joint pain, back pain , headache, muscle pain, and spasms. Flexon MR tablet is also used to cure gastrointestinal infections such as acute diarrhea , dysentery, gynecological infections, lung infections, and urinary infections. Flexon MR reduces muscle reflexes and increases the pain threshold of the body. It also increases the flow of blood which prevents the production of prostaglandin released by the body during the sensation of pain.

How to Use Flexon MR?

It is advisable to follow the directions written on the drug packet and consume Flexon MR in the dosage as advised by the doctor. Flexon MR Tablet must be swallowed whole, without crushing or breaking it. For better absorption, it is suggested to take Flexon MR with food. Taking the medicine on an empty stomach may result in problems related to the stomach.

How Flexon MR Tablet works?

The medicine Flexon MR tablet works by depressing the muscle reflexes and increasing the pain threshold. Flexon MR Tablet increases the blood flow across the skin and prevents the production of prostaglandin which is released by the body during pain.

Warnings and Precautions When to Avoid Flexon MR:

A few health conditions which affect the administration and effects of Flexon MR:

  • Allergy – Any allergic reaction, pre-existing or otherwise, like skin irritation and redness, rashes and itchiness etc., is advised to be reported to the doctor before the administration of Flexon MR.
  • Kidney and liver-related disorders – People with kidney and liver-related disorders are advised to completely avoid Flexon MR Tablet.
  • Pregnancy and breastfeeding – Flexon MR is not recommended to be consumed by pregnant and lactating females unless absolutely necessary.
  • Alcohol – Consuming alcohol with Ibuprofen + Paracetamol /Acetaminophen + Chlorzoxazone can cause liver damage.
  • Driving and operating heavy machinery – Flexon MR Tablet may cause side effects like dizziness and sleepiness. Patients are not advised to indulge in activities requiring mental alertness.
  • Anaemia – Flexon MR should be consumed with caution by patients suffering fromanemia as the side effects may be severe.
  • Patients experiencing swelling of the face, lips, tongue or throat or any other signs are advised to avoid the consumption of Flexon MR
  • Exposure to sunlight is not advised while administering Flexon MR Tablet
  • During the administration of Flexon MR, patients are advised against the use of aspirin .

Substitutes for Flexon MR:

The following medicines can be used as substitutes for Flexon MR Tablet:

  • Dolomed MR Tablet (Comed Chemicals Ltd)
  • Spontrel Tablet (Dr Reddy's Laboratories Ltd)
  • Sysdol MR Tablet (Sysmed Laboratories Pvt Ltd)
  • Coflam MR Tablet (Parasol Laboratories)
  • Artiflex Plus Tablet (Glenmark Pharmaceuticals)
  • Dolomed MR Tablet (Comed Chemicals Ltd)
  • Spontrel Tablet (Dr Reddy's Laboratories Ltd)
  • Sysdol MR Tablet (Sysmed Laboratories Pvt Ltd)
  • Coflam MR Tablet (Parasol Laboratories)
  • Artiflex Plus Tablet(Glenmark Pharmaceuticals Ltd)

Flexon MR Tablet Interaction with Other Drugs:

The following drugs may interact with Flexon MR Tablet:

  • Alcohol
  • Alprazolam
  • Aspirin
  • Atorvastatin
  • Cetirizine
  • Codeine
  • Corticosteroids
  • Cyclosporine
  • Diazepam
  • Diphenhydramine
  • Esomeprazole
  • Juxtapid mipomersen
  • Ketoconazole
  • Leflunomide
  • Lithium drugs
  • Methotrexate
  • Mifepristone
  • Muscle Relaxants
  • Prilocaine
  • Quinolone antibiotics
  • Sedatives
  • Tacrolimus
  • Teriflunomide
  • Topiramate
  • Warfarin
  • Zidovudine
  • Zolpidem

Interaction with Diseases

Flexon MR, when taken by patients suffering from the following health conditions, may cause serious side effects:

  • Allergy or hypersensitivity towards the ingredients of the drug.
  • Asthma Patients suffering from the condition in which a person’s airways become inflamed, swollen and narrow and produce excessive mucus, making it difficult to breathe should be informed to the doctor
  • Gastro-intestinal bleeding – Patients with a history of peptic ulcers or any gastrointestinal bleeding disorders may have complications if Flexon MR is taken for a prolonged time.
  • Liver diseases – a condition which damages the liver and prevents it from functioning well.
  • Porphyria
  • Hepatic impairment – also known as a liver failure, this condition involves both acute and chronic liver failure. Consumption of Flexon MR Tablet, in this case, may result in adverse effects
  • Fluid retention and edema – Flexon MR may lead to fluid retention and edema in some patients. Close monitoring of blood pressure , electrolyte levels, and heart function may be required based on the clinical condition. Appropriate dose adjustment or replacement with a suitable alternative may be required in some cases.
  • Skin rashes – Skin rashes may occur as a result of taking Flexon MR. Symptoms such as rashes, hives, fever, or other allergic symptoms are advised to be reported to the doctor without delay.
  • Intestinal Bleeding – Consumption of Flexon MR by patients suffering from intestinal bleeding may be at risk of aggravated bleeding in the intestine, especially in elderly patients.
  • Congenital Heart Disease in Neonates – Flexon MR Tablet should not be consumed by patients suffering from congenital heart disease.
  • Chronic Malnutrition – there is an increased risk of side effects among patients with severe malnutrition using Flexon MR. Appropriate dose adjustment or replacement with a suitable alternative may be required in some cases.

Interaction with Alcohol

Consumption of alcohol during the course of Flexon MR Tablet is not recommended as it may lead to serious side effects such as severe gastrointestinal bleeding, dizziness, fatigue, weakness, rashes, nausea, joint pain, fever, etc.


1) Is Flexon MR tablet safe for use by pregnant and breastfeeding women?

Ans: Flexon MR Tablet is generally not advised to be consumed by pregnant and breastfeeding females as it is known to cause an adverse effect on the fetus or the nursing infant. Thus, unless prescribed by the doctor, Flexon MR must not be administered by females who are pregnant or lactating.

2) Is Flexon MR suitable for treating back pain and fever?

Ans: Flexon MR is known to be effective in treating symptoms associated with back pain and fever. It is advised to take Flexon MR after consulting a doctor in order to avoid the occurrence of any unintended side effects.

3) How much time does it take for Flexon MR to show its effect on the body?

Ans: Full effect of Flexon MR can be seen within 30- 60 minutes of oral administration. However, the effect may vary from person to person depending on the health conditions and dosage of the medicine.

4) Is it advisable to continue taking the medicine after the pain is gone?

Ans: It is advisable to strictly follow the dose and course of treatment as prescribed by the doctor. In case the symptoms are relieved, one is suggested to consult the doctor before discontinuing Flexon MR.

5) Is it safe to drive or operate heavy machinery during the course of Flexon MR?

Ans: In case symptoms like hypotension, low blood pressure , headache, dizziness, or drowsiness are experienced as side effects, then one should refrain from driving and operating heavy machinery.

6) Is it safe to consume alcohol during the course of Flexon MR?

Ans: Consumption of alcohol is not recommended alongside Flexon MR as it is known to slow down the reflexes and brain functioning.

7) Is Flexon MR tablet habit forming?

Ans: No habit-forming tendencies have been reported by the use of Flexon MR. The government categorizes addictive drugs under Schedule H or X in India. One is advised to read the label carefully for instructions and nature.

8) What are the storage instructions for Flexon MR tablet?


  • It is advised to store Flexon MR Tablet at room temperature away from direct sunlight and heat. The ideal temperature for storing Flexon MR is below 25 degrees Celsius.
  • Keep Flexon MR away from children and pets.
  • Do not use Flexon MR tablet after the expiry date mentioned on the label.

9) What should be done in case an expired dose of Flexon MR has been consumed?

Ans: It is advisable to consult the doctor to seek remedial action in case an expired dose of Flexon MR has been consumed.

10) Can the use of Flexon MR cause nausea and vomiting?

Ans: Yes, the use of Flexon MR may cause nausea and vomiting in some cases. These symptoms generally get relieved after the completion of the course of the medicine. In case vomiting and nausea persist, it is suggested to consult a doctor .

11) What are the specific contraindications associated with Flexon MR tablet?

Ans: Patients with a known allergy to a painkiller (NSAIDs) or any of the components present in the drug are advised to not use Flexon MR tablet. Patients with a history of stomach ulcer or those suffering from active or recurrent stomach ulcer/bleeding are advised against the use of Flexon MR. Patients with a history of heart failure, high blood pressure , and liver or kidney disease are also advised to not administer Flexon MR tablet.

12) Can Flexon MR Tablet be used with Vitamin B complex tablet?

Ans: Yes, Flexon MR Tablet is safe to be administered alongside vitamin B complex.

13) Can Flexon MR tablet cause damage to the kidneys?

Ans: Long term use of Flexon MR Tablet may cause severe damage to the kidneys. Properly functioning kidneys produce a chemical known as prostaglandin that protects them from damage. Long term use of painkillers reduces the levels of prostaglandins in the body leading to kidney damage. Patients with underlying kidney disease are advised to not administer Flexon MR Tablet.

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Last updated on : 26-09-2019

Disclaimer : Docprime doesn’t endorse or take any guarantee of the accuracy or completeness of information provided under this article and these are the views strictly of the writer. Docprime shall not be held responsible for any aspect of healthcare services administered with the information provided on this article.

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