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What is Flexon MR?

Flexon MR Tablet is used for Back pain, Fever, Muscles pain, Cold, Muscle pain, Toothache and other conditions. Flexon MR Tablet may also be used for purposes not listed in this medication guide.
Flexon MR Tablet contains Chlorzoxazone, Ibuprofen and Paracetamol as active ingredients.
Flexon MR Tablet works by depressing muscle reflexes; increasing the pain threshold and increases the blood flow across the skin, heat loss and sweating; blocking the production of a prostaglandin that is released in the body during pain;
Aristo Pharma manufactures Flexon MR Tablet.
Detailed information related to Flexon MR Tablet's uses, composition, dosage, side effects and reviews is listed below.

Flexon MR Tablet Uses

Flexon MR Tablet is used for the treatment, control, prevention, & improvement of the following diseases, conditions and symptoms:
References: 1, 2, 3
Learn more: Uses

Flexon MR Tablet Working, Mechanism of Action and Pharmacology

Flexon MR Tablet improves the patient's condition by performing the following functions:
  • Depressing muscle reflexes.
  • Increasing the pain threshold and increases the blood flow across the skin, heat loss and sweating.
  • Blocking the production of a prostaglandin that is released in the body during pain.
References: 1, 4, 5

Flexon MR Tablet - Composition and Active Ingredients

Flexon MR Tablet is composed of the following active ingredients (salts)
Please note that this medicine may be available in various strengths for each active ingredient listed above.

Flexon MR Tablet - Side-effects

The following is a list of possible side-effects that may occur from all constituting ingredients of Flexon MR Tablet. This is not a comprehensive list. These side-effects are possible, but do not always occur. Some of the side-effects may be rare but serious. Consult your doctor if you observe any of the following side-effects, especially if they do not go away.
If you notice other side-effects not listed above, contact your doctor for medical advice. You may also report side-effects to your local food and drug administration authority.
References: 1, 4, 6, 7
Learn more: Side-effects

Flexon MR Tablet - Precautions & How to Use

Before using Flexon MR Tablet, inform your doctor about your current list of medications, over the counter products (e.g. vitamins, herbal supplements, etc.), allergies, pre-existing diseases, and current health conditions (e.g. pregnancy, upcoming surgery, etc.). Some health conditions may make you more susceptible to the side-effects of the drug. Take as directed by your doctor or follow the direction printed on the product insert. Dosage is based on your condition. Tell your doctor if your condition persists or worsens. Important counseling points are listed below.
  • Avoid drinking alcohol or taking other sedating medications
  • Avoid driving or operating machinery until you know how this medication will affect you
  • Avoid taking alcohol or salicylates to prevent bleeding
  • Avoid using it if allergic to paracetamol
  • Concomitant use with other sedatives
  • Consult your doctor if you develop blurred vision, ringing or roaring in ears
References: 1, 1

Flexon MR Tablet - Drug Interactions

If you use other drugs or over the counter products at the same time, the effects of Flexon MR Tablet may change. This may increase your risk for side-effects or cause your drug not to work properly. Tell your doctor about all the drugs, vitamins, and herbal supplements you are using, so that you doctor can help you prevent or manage drug interactions. Flexon MR Tablet may interact with the following drugs and products:
  • Alcohol
  • Alprazolam
  • Aspirin
  • Atorvastatin
  • Cetirizine
  • Codeine
Learn more: Interactions

Flexon MR Tablet - Contraindications

Hypersensitivity to Flexon MR Tablet is a contraindication. In addition, Flexon MR Tablet should not be used if you have the following conditions:
  • Active peptic ulcer
  • Aspirin
  • Breastfeeding
  • Gastrointestinal bleeding
  • Hepatic impairment
  • Hypersensitivity
References: 1
Learn more: Contraindications

Where to Buy Flexon MR Tablet

Click here to find nearby pharmacies/medical stores where you can buy Flexon MR Tablet.

Flexon MR Tablet - Frequently asked Questions

  • Is Flexon MR Tablet safe to consume or apply when pregnant?
    • Chlorzoxazone: Please consult with your doctor for case-specific recommendations.
    • Paracetamol: Please consult with your doctor for case-specific recommendations.
    • Ibuprofen: No
    References: 1
  • Is Flexon MR Tablet safe while breastfeeding?
    • Chlorzoxazone: Please discuss the risks and benefits with your doctor.
    • Paracetamol: Please discuss the risks and benefits with your doctor.
    • Ibuprofen: No
    References: 1
  • Can Flexon MR Tablet be used for back pain and fever?
    Yes, back pain and fever are among the most common reported uses for Flexon MR Tablet. Please do not use Flexon MR Tablet for back pain and fever without consulting first with your doctor. Click here and view survey results to find out what other patients report as common uses for Flexon MR Tablet.
  • How long do I need to use Flexon MR Tablet before I see improvement of my conditions? website users have reported 1 day and same day as the most common time it takes before they saw improvements in their conditions. These times may not be reflective of what you may experience or how you should use this medicine. Please consult with your doctor to check how long do you need to use Flexon MR Tablet. Click here and view survey results to find out what other patients report as time for effectiveness for Flexon MR Tablet.
  • At what frequency do I need to use Flexon MR Tablet? website users have reported once a day and twice a day as the most common frequency of using Flexon MR Tablet. Please follow your doctor's advice on how often you need to Flexon MR Tablet. Click here and view survey results to find out what other patients report as frequency of using Flexon MR Tablet.
  • Should I consume Flexon MR Tablet empty stomach, before food or after food? website users have most commonly reported consuming Flexon MR Tablet after food. However, this may not be reflective of how you should consume this medicine. Please follow your doctor's advice on how you should use this medicine. Click here and view survey results to find out what other patients report as timing of using Flexon MR Tablet.
  • Is it safe to drive or operate heavy machinery when consuming?
    If you experience drowsiness, dizziness, hypotension or a headache as side-effects when using Flexon MR Tablet medicine then it may not be safe to drive a vehicle or operate heavy machinery. One should not drive a vehicle if using the medicine makes you drowsy, dizzy or lowers your blood-pressure extensively. Pharmacists also advise patients not to drink alcohol with medicines as alcohol intensifies drowsiness side-effects. Please check for these effects on your body when using Flexon MR Tablet. Always consult with your doctor for recommendations specific to your body and health conditions.
  • Is this medicine or product addictive or habit forming?
    Most medicines don't come with a potential for addiction or abuse. Usually, government's categorizes medicines that can be addictive as controlled substances. Examples include schedule H or X in India and schedule II-V in the US. Please consult the product package to make sure that the medicine does not belong to such special categorizations of medicines. Lastly, do not self-medicate and increase your body's dependence to medicines without the advice of a doctor.
  • Can it be stopped immediately or do I have to slowly ween off consumption?
    Some medicines need to be tapered or cannot be stopped immediately because of rebound effects. Please consult with your doctor for recommendations specific to your body, health and other medications that you may be using.

Other important Information on Flexon MR Tablet

Missing a dose

In case you miss a dose, use it as soon as you notice. If it is close to the time of your next dose, skip the missed dose and resume your dosing schedule. Do not use extra dose to make up for a missed dose. If you are regularly missing doses, consider setting an alarm or asking a family member to remind you. Please consult your doctor to discuss changes in your dosing schedule or a new schedule to make up for missed doses, if you have missed too many doses recently.
References: 8, 9, 10, 11

Overdosage of Flexon MR Tablet

  • Do not use more than prescribed dose. Taking more medication will not improve your symptoms; rather they may cause poisoning or serious side-effects. If you suspect that you or anyone else who may have overdosed of Flexon MR Tablet, please go to the emergency department of the closest hospital or nursing home. Bring a medicine box, container, or label with you to help doctors with necessary information.
  • Do not give your medicines to other people even if you know that they have the same condition or it seems that they may have similar conditions. This may lead to overdosage.
  • Please consult your physician or pharmacist or product package for more information.
References: 12, 13, 14

Storage of Flexon MR Tablet

  • Store medicines at room temperature, away from heat and direct light. Do not freeze medicines unless required by package insert. Keep medicines away from children and pets.
  • Do not flush medications down the toilet or pour them into drainage unless instructed to do so. Medication discarded in this manner may contaminate the environment. Please consult your pharmacist or doctor for more details on how to safely discard Flexon MR Tablet.
References: 15, 16, 17, 18

Expired Flexon MR Tablet

  • Taking a single dose of expired Flexon MR Tablet is unlikely to produce an adverse event. However, please discuss with your primary health provider or pharmacist for proper advice or if you feel unwell or sick. Expired drug may become ineffective in treating your prescribed conditions. To be on the safe side, it is important not to use expired drug. If you have a chronic illness that requires taking medicine constantly such as heart condition, seizures, and life-threatening allergies, you are much safer keeping in touch with your primary health care provider so that you can have a fresh supply of unexpired medications.
References: 19, 20

Dosage Information

Please consult your physician or pharmacist or refer to product package.

Questions - Flexon MR Tablet

Flexon is recommended to be taken on doctor's advice. It consists of Ibuprofen and paracetamol as active ingredients. According to FDA, Ibuprofen has a pregnancy category C rating. It indicates that animal reproduction studies have revealed an adverse effect on the fetus and there are no well-controlled studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks.

During the first and second trimester of pregnant women, Ibuprofen should not be used unless clearly prescribed. If Ibuprofen is used by a woman trying to conceive, or while the first or second trimester of gestation, the dose should be kept as low and duration of therapy as short as possible. During the third trimester of pregnancy, use of Ibuprofen may expose the fetus to cardiopulmonary toxicity and renal dysfunction, which may proceed to renal failure with oligohydramnios. Hence, Ibuprofen is contraindicated during the third trimester of pregnancy. Women taking Ibuprofen are advised to notify their gynaecologist if they become pregnant or intend to become pregnant during therapy or are breastfeeding an infant.

The safety profile of Paracetamol during pregnancy is not clear. US Food and Drug Administration (FDA) has specified Paracetamol as a category C drug which indicates that animal studies show an adverse effect on the fetus but there are no teratogenic studies of Paracetamol in pregnant women. Paracetamol is a nonsteroidal anti-inflammatory drug (NSAID) which comes under the subclass of para-aminophenol derivatives. It is used for fever, cold, ear pain, joint pain, headache, and febrility.

A study published in 2016 in the journal of clinical Psychiatry suggested that Paracetamol may be responsible for the increased risk of attention-deficit and hyperactivity disorder (ADHD) when used during pregnancy. Experimental studies in animals and cohort studies in humans indicated that there was no shown risk of congenital malformations with paracetamol use during pregnancy.

1. NEW ZEALAND DATA SHEET BRUFEN URL: Accessed January 09, 2018
2. Wikipedia Paracetamol URL: Accessed January 09, 2018
3. Andrade C. Use of acetaminophen (paracetamol) during pregnancy and the risk of attention-deficit/hyperactivity disorder in the offspring. J Clin Psychiatry. 2016;77(3):e312-4 URL: Accessed January 09, 2018
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News and Updates

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Flexon MR Tablet - Packages and Strengths

Flexon MR Tablet is available in the following packages and strengths
Flexon MR Tablet - Packages: 10 Tablet, 10 Tablet Mr
Flexon MR Tablet - Strengths: 400MG+325MG+250MG, 400+325+250

Flexon MR Tablet - Manufacturers

The medicine is manufactured by the following companies

Flexon MR Tablet - Demographic Information


  1. Dailymed Chlorzoxazone tablet - Accessed: October 12, 2016.
  2. DailyMed LABEL: ACETAMINOPHEN - acetaminophen tablet, coated - Accessed: October 12, 2016.
  3. HSDB Record Name: IBUPROFEN - Accessed: October 12, 2016.
  4. Pubchem Acetaminophen - Accessed: October 12, 2016.
  5. Pubchem Ibuprofen - Accessed: October 12, 2016.
  6. Rossi, S, ed. (2013). Australian Medicines Handbook (2013 ed.). Adelaide: The Australian Medicines Handbook Unit Trust. ISBN 978-0-9805790-9-3. - Accessed: October 12, 2016.
  7. Castellsague, Dr Jordi; Riera-Guardia, Nuria; Calingaert, Brian; Varas-Lorenzo, Cristina; Fourrier-Reglat, Annie; Nicotra, Federica; Sturkenboom, Miriam; Perez-Gutthann, Susana; Project, Safety of Non-Steroidal Anti-Inflammatory Drugs (SOS) (2012-12-13). "Individual NSAIDs and Upper Gastrointestinal Complications". Drug Safety. 35 (12): 1127_1146. doi:10.1007/BF03261999. ISSN 0114-5916. PMC 3714137free to read. PMID 23137151. - Accessed: October 12, 2016.
  8. - Accessed: July 14, 2016.
  9. - Accessed: July 3, 2016.
  10. Cancer.Net (2014). - Accessed: July 3, 2016.
  11. Schachter, S.C., Shafer, P. O. &; Sirven, J.I. (2013). - Accessed: May 28, 2016.
  12. National Institute of Drug Abuse (2010). - Accessed: July 21, 2016.
  13. eMedicinehealth (2016). - Accessed: July 21, 2016.
  14. Centers for Disease Control and Prevention (2010). - Accessed: July 21, 2016.
  15. Centers for Disease Control and Prevention. December 12, 2011. - Accessed: June 10, 2016.
  16. The Center for Improving Medication Management and the National Council on Patient Information and Education. - Accessed: June 10, 2016.
  17. U.S. Food and Drug Administration. December 24, 2013. - Accessed: June 10, 2016.
  18. World Health Organization: - Accessed: July 1, 2016.
  19. Lyon, R. C., Taylor, J. S., Porter, D. A., et al. (2006) Stability profiles of drug products extended beyond labeled expiration dates. Journal of Pharmaceutical Sciences; 95:1549-60 - Accessed: July 3, 2016.
  20. Harvard Medical School (2016). - Accessed: May 1, 2016.

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APA Style Citation

  • Flexon MR Tablet - Uses, Side-effects, Reviews, and Precautions - Aristo Pharma - - India. (n.d.). Retrieved January 22, 2018, from

MLA Style Citation

  • "Flexon MR Tablet - Uses, Side-effects, Reviews, and Precautions - Aristo Pharma - - India" N.p., n.d. Web. 22 Jan. 2018.

Chicago Style Citation

  • "Flexon MR Tablet - Uses, Side-effects, Reviews, and Precautions - Aristo Pharma - - India" Accessed January 22, 2018.

Last updated date

This page was last updated on 1/21/2018.
This page provides information for Flexon MR Tablet in English.
Read Reviews » Flexon MR Tablet

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