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Prescription requiredSun PharmaMuscle relaxant
Flexura 400 mg Tablet
Metaxalone (400mg)
₹193MRP ₹203In stock
Delivery across India. Free above ₹999; ₹49 from ₹499, ₹99 below. Chennai express delivery is chargeable.
This medicine needs a prescription.
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Flexura 400 mg Tablet is used for this medicine is used in the treatment of muscle spasm, back pain, neck pain and muscle stiffness.
Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated September 2026
Licensed pharmacyPharmacist-verified orderDelivered across India
Key details
Salt: Metaxalone (400mg)
Available variants: tablet 400 mg 10`S
Best price: ₹193 (₹19.29 per tablet)
MRP: ₹203
Prescription: Required
Manufacturer: SUN PHARMA
Ordering notes
Standard delivery across India. No same-day delivery nationally.
Chennai express delivery is possible and chargeable. Learn more
Returns & refunds: orders can be cancelled before dispatch; after dispatch, returns depend on the item category. Read the full policy
Composition of Flexura 400 mg Tablet
Flexura 400 mg Tablet contains Metaxalone (400mg). It belongs to the Centrally acting muscle relaxant class of medicines.
Uses of Flexura 400 mg Tablet
- This medicine is used in the treatment of muscle spasm
- back pain
- neck pain and muscle stiffness.
Key benefits
- Breaks the spasm–pain cycle
- Helps you move and sleep more comfortably
How Flexura 400 mg Tablet works
Metaxalone eases painful muscle spasm by reducing the nerve signals that keep the muscle contracted.
How to take Flexura 400 mg Tablet
Swallow the tablet whole with a glass of water. Do not chew, crush or break it unless your doctor has told you to. Take it with or after food. Taking it at about the same time each day helps you remember. Follow the dose and the duration written on your prescription.
Take it exactly as your doctor prescribed. Do not change the dose or stop early on your own.
Missed dose and overdose
If you miss a dose
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.
If you take too much
An overdose of this medicine can cause deep drowsiness, muscle weakness, a fall in blood pressure and slowed breathing. Do not wait for symptoms to appear — go to the nearest emergency department and take the pack or strip with you.
Side effects of Flexura 400 mg Tablet
Most side effects of Flexura are mild and settle as the body adjusts. Reported side effects include:
- Drowsiness
- Dizziness
- Dry mouth
- Weakness
- Nausea
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.
Safety advice for Flexura 400 mg Tablet
| Pregnancy | Consult your doctor before using this in pregnancy. |
|---|---|
| Breastfeeding | Consult your doctor before using this while breastfeeding. |
| Alcohol | Do not drink alcohol while taking this medicine. |
| Driving | Do not drive or operate machinery while taking this medicine. |
| Kidney | Use with caution if you have kidney disease — your doctor may adjust the dose or monitor your kidney function. |
| Liver | Consult your doctor if you have liver disease. |
| Habit forming | No |
Warnings and precautions
This medicine causes drowsiness. Do not drive or operate machinery until you know how it affects you. Use it for the short course your doctor has prescribed — these are not intended for long-term use. Do not stop a long course abruptly without asking your doctor.
Do not take Flexura if
Not for anyone with a known allergy to this medicine or to any ingredient in the pack. Not for people with myasthenia gravis or severe liver disease.
Interactions with other medicines
Alcohol, sleeping tablets, antihistamines and opioid painkillers all add to the drowsiness, sometimes dangerously.
How to store Flexura 400 mg Tablet
Store below 30°C in the original pack, away from direct sunlight and moisture. Keep out of the reach of children.
Expert advice for Flexura 400 mg Tablet
Combine it with gentle movement and the physiotherapy your doctor advises; rest alone prolongs back pain. Take it at night if drowsiness troubles you during the day.
Manufacturer and class
- Manufacturer:
- SUN PHARMA
- Therapeutic class:
- Muscle relaxant
- Drug class:
- Centrally acting muscle relaxant
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Flexura 400 mg Tablet FAQs
What is Flexura 400 mg Tablet used for?
Flexura 400 mg Tablet is commonly used for This medicine is used in the treatment of muscle spasm, back pain, neck pain and muscle stiffness. Always follow your doctor's advice, this information is for educational purposes and not a substitute for professional medical guidance.
What is the salt in Flexura 400 mg Tablet?
Flexura 400 mg Tablet contains Metaxalone (400mg). If you are allergic to any of these active ingredients or excipients, do not take this medicine and speak to your doctor first.
How should I take Flexura 400 mg Tablet?
Swallow the tablet whole with a glass of water. Take it exactly as prescribed; do not change the dose or stop early without talking to your doctor.
How does Flexura 400 mg Tablet work?
Metaxalone eases painful muscle spasm by reducing the nerve signals that keep the muscle contracted.
Is Flexura 400 mg Tablet a prescription medicine?
Yes. Flexura 400 mg Tablet is a prescription-only (Rx) medicine. Upload a valid prescription from a registered medical practitioner during checkout. We cannot dispense it without a valid Rx.
What are the common side effects of Flexura 400 mg Tablet?
The side effects reported most often with Flexura are Drowsiness, Dizziness, Dry mouth, Weakness, Nausea. Most are mild and settle as the body adjusts; tell your doctor if any of them persist or worry you, and stop the medicine and seek help at once for a rash, swelling of the face or lips, or difficulty breathing.
Can Flexura 400 mg Tablet be taken during pregnancy?
Consult your doctor before using this in pregnancy. Always tell your doctor if you are pregnant, planning a pregnancy or breastfeeding before starting Flexura.
Can I drink alcohol while taking Flexura 400 mg Tablet?
Do not drink alcohol while taking this medicine.
What if I miss a dose of Flexura 400 mg Tablet?
Take it as soon as you remember.
Is Flexura 400 mg Tablet habit forming?
No. Flexura 400 mg Tablet is not known to be habit forming when taken as prescribed.
How much does Flexura 400 mg Tablet cost on PingMeDoc Pharmacy?
Flexura 400 mg Tablet starts at ₹193 (MRP ₹203) on PingMeDoc Pharmacy. Available in tablet 400 mg 10`S. Final price is confirmed at checkout and may vary by variant and location.
Who manufactures Flexura 400 mg Tablet?
Flexura 400 mg Tablet is manufactured by SUN PHARMA. PingMeDoc Pharmacy sources medicines only from licensed manufacturers and distributors.
How is Flexura 400 mg Tablet delivered?
Flexura 400 mg Tablet is delivered across India via our licensed pharmacy partners. Standard delivery timelines are confirmed at checkout. Chennai customers can opt for chargeable same-city express delivery.
Flexura 400 mg Tablet, Quick facts
- Salt
- Metaxalone (400mg)
- Form
- tablet
- Best price
- ₹193 (₹19.29 per tablet)
- MRP
- ₹203
- Prescription
- Required (Rx)
- Brand
- SUN PHARMA
- Manufacturer
- SUN PHARMA
- Therapeutic class
- Muscle relaxant
- Drug class
- Centrally acting muscle relaxant
- Habit forming
- No
- Variants
- tablet 400 mg 10`S
- Delivery
- Standard across India
References
The information on Flexura 400 mg 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.
- PingMeDoc clinical monograph library — compiled from Indian package inserts, the Indian Pharmacopoeia
- CDSCO schedules and standard pharmacology references. Reviewed for patient readability. This is general information, not a substitute for your doctor's advice.
- Central Drugs Standard Control Organisation (CDSCO), Ministry of Health & Family Welfare, Government of India, approved drug and schedule listings.
- National List of Essential Medicines (NLEM) 2022, Government of India.
- Manufacturer's package insert / prescribing information for Flexura 400 mg Tablet.
- World Health Organization, ATC/DDD classification and Model Formulary for the active ingredient.
Next steps
Safety disclaimer
Product information is for general awareness and does not replace professional medical advice. Always follow a clinician's guidance and upload a valid prescription when required.