Flexeril (Cyclobenzaprine) 15 mg Tablets

Flexeril
4.822 ratingsReviews
Generic:
Cyclobenzaprine
Analogs:
Amrix Fexmid Methocarbamol Metaxalone Carisoprodol Chlorzoxazone Orphenadrine Tizanidine Baclofen Diazepam Norflex Robaxin Skelaxin Soma Zanaflex
Flexeril 15 mg tablets contain cyclobenzaprine, a centrally acting muscle relaxant used short-term alongside rest and physiotherapy for acute muscle spasm. We stock pack sizes from 20 to 360 tablets for straightforward online ordering.
In stock: 13 packs
AdultsPregnancyAllergiesDiabetesBreastfeedingChildrenDriving

Dosages

Flexeril 15 mg

Quantity Price per tablet You save Total price
20 £3.30 - £65.93
30 £3.09 £6.30 £92.60
60 £2.43 £51.86 £145.94
90 £2.29 £90.75 £205.94
120 £2.23 £128.16 £267.43
180 £2.17 £202.24 £391.14
270 £2.11 £319.66 £570.42
360 £2.06 £445.96 £740.80

Manufacturers

Alfasigma S.p.A.Apotex Inc.Shionogi Inc.Sun Pharmaceutical Industries Ltd.Teva Canada Limited

Payment & Delivery

Package Example

Your order is securely packed and usually dispatched within 24 hours. Here is what a typical parcel looks like.

It is about the size of a regular letter (24x11x0.7 cm) and does not show any details of what is inside.

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Delivery Times
Delivery MethodEstimated delivery
Express Free for orders over £222.24Estimated delivery to the UK: 4-7 days
Standard Free for orders over £148.16Estimated delivery to the UK: 14-21 days
EMSRoyal Mail
Payment Methods
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Brand Names

Also known as (by country):
CountryBrand Names
Canada
APO-CYCLOBENZAPRINE Teva-Cyclobenzaprine
United States
Fexmid

FAQ

Do not use a tablet if its blister pocket is torn, punctured, open or otherwise compromised. Keep the packaging and check the product label, batch number and expiry date before arranging a replacement or refund.

The manufacturer of the supplied product may vary. The manufacturer's name is shown on the product packaging.

A changed appearance can occur when the manufacturer or presentation differs, but appearance alone does not identify a tablet. Compare the active ingredient, 15 mg strength, tablet dosage form, manufacturer, package label, batch number, expiry date and any imprint; do not take it if any of these details are wrong or cannot be verified.

Keep the tablets in their package and inspect them before use. The labelled storage condition is 25 °C, with permitted excursions between 15 °C and 30 °C. Do not use tablets that are discoloured, cracked, damp or have damaged packaging.

Avoid alcohol while taking cyclobenzaprine. Alcohol can increase drowsiness, dizziness and impaired coordination caused by this centrally acting muscle relaxant, making falls and driving-related risks more likely.

Cyclobenzaprine is a centrally acting skeletal muscle relaxant used as a short-term adjunct to rest and physiotherapy for muscle spasm linked to acute, painful musculoskeletal conditions, such as an injury-related back or neck strain. Treatment is generally limited to 2-3 weeks. It is not effective for spasticity caused by brain or spinal cord disease.

During pregnancy, cyclobenzaprine should be used only when clearly needed after an individual prescriber assessment, as adequate controlled studies in pregnant women are lacking. During breastfeeding, use requires caution because it is not known with certainty whether it passes into human milk; a breastfed infant should be observed for unusual sleepiness or poor feeding.

Take the tablet by mouth with water exactly as directed on the product label or by the prescriber. Do not alter the tablet by splitting, crushing or chewing it unless the supplied leaflet specifically permits this. The 15 mg strength alone does not establish a suitable dosing schedule, and cyclobenzaprine is ordinarily intended for short-term treatment.

Description

Flexeril is the brand name for cyclobenzaprine, supplied by us as an oral tablet in a single 15 mg strength. It belongs to the skeletal muscle relaxant class and is used as a short-term adjunct to rest and physiotherapy for painful muscle spasm linked to acute musculoskeletal conditions.

What Flexeril Is Used For

Cyclobenzaprine does not act directly on muscle tissue. Instead, it works centrally, reducing hyperactive nerve signalling at the level of the brainstem, which eases muscle spasm and the discomfort that comes with it. It is structurally related to tricyclic antidepressants such as amitriptyline, which explains some of its side-effect profile.

Cyclobenzaprine tablets are typically used for short courses, generally no longer than two to three weeks, because acute muscle spasm usually settles within this timeframe and longer use has not been shown to add benefit. It is not intended to treat spasticity caused by cerebral or spinal cord disease.

Essential Facts

No release type is specified for this 15 mg tablet, so its dosing frequency should not be inferred from general information for other cyclobenzaprine formulations. The dose and schedule should follow the directions supplied with the product or instructions from a healthcare professional. Cyclobenzaprine can generally be taken with or without food.

The most commonly reported effects are drowsiness, dry mouth, fatigue and dizziness. Blurred vision, constipation and reduced alertness can also occur. Because sedation is common, driving or operating machinery should be avoided until the individual response is known. Alcohol, opioids, benzodiazepines and other central nervous system depressants can increase this effect.

Seek prompt medical advice for a fast or irregular heartbeat, fainting, severe confusion, marked agitation, muscle rigidity or other serious symptoms. Older adults may be more susceptible to sedation, confusion, falls and anticholinergic effects, so suitability should be assessed carefully.

Available Strengths and Pack Sizes

We currently list Flexeril in one strength, with a range of pack sizes so customers can match the order to how long a course is expected to run.

Available Strengths and Pack Sizes

StrengthAvailable Pack Sizes
15mg20, 30, 60, 90, 120, 180, 270, 360 tablets
Pack quantities available for online order.

Important Notes

Cyclobenzaprine should not be used by anyone with a known hypersensitivity to it, during the acute recovery phase after a myocardial infarction, or by people with arrhythmias, heart block or conduction disturbances, heart failure or hyperthyroidism. It is also contraindicated during treatment with a monoamine oxidase inhibitor (MAOI) and for 14 days after stopping one. Combining cyclobenzaprine with serotonergic medicines, including some SSRIs, SNRIs and tramadol, may increase the risk of serotonin syndrome. Extra caution is appropriate with conditions that may be worsened by anticholinergic effects, such as urinary retention or angle-closure glaucoma.

Use in pregnancy and breastfeeding should be discussed individually with a healthcare professional. It is not known whether cyclobenzaprine passes into human milk, and infant drowsiness is a potential concern. Safety and effectiveness in children have not been established.

Flexeril is not identified as an authorised medicinal product in the MHRA Products database for the United Kingdom, so the available product information reflects data from markets where cyclobenzaprine is an established treatment. We do not require a prescription to accept an order for this product, and our checkout, packing and delivery are handled entirely by our own team, with pharmacist-supported customer service available 24/7 by email, live chat or phone. Store the tablets at 25°C; excursions between 15°C and 30°C are permitted. Keep them away from moisture and direct light.

Customers comparing options for muscle spasm may also wish to look at Tizanidine, another centrally acting muscle relaxant we supply, or browse our wider Muscle Relaxants range.

Medically reviewed by
Mildred Torres
Pharmacist
Updated 17 August 2026

Customer questions

Asked by Georgia H, Glasgow, United Kingdom

I have found apparently the same generic cyclobenzaprine for nearly half the price on another website. Why should I order from you instead?

Answered by Support team

We stand behind the quality of the generic medicines we offer. We cannot verify what another seller supplies, how it is sourced or handled, or whether a similar name and lower price represent a truly equivalent product. The choice is yours, but it is worth deciding whether the saving is worth accepting that uncertainty.

Asked by Sienna K, Sheffield, United Kingdom

I cannot remember whether I took my cyclobenzaprine tablet and may have taken an extra one. What should I do?

Answered by Support team
Medical reviewed by Mildred Torres

Seek urgent advice now through NHS 111 if you may have taken more than intended, and keep the packet available. Call 999 if there is severe drowsiness, confusion, fainting, a seizure, breathing difficulty, chest symptoms or a fast or irregular heartbeat. Do not drive yourself.

Product specifications

Active ingredientCyclobenzaprine
Drug classSkeletal muscle relaxant
Dosage formTablet
Available strengths15 mg
RouteOral
StorageStore at 25°C; excursions permitted between 15°C and 30°C.
ATC codeM03BX08

Regulatory information

Licensing statusCyclobenzaprine is not authorised for human use in the United Kingdom.

More information