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Other brands with the same active ingredient

These brands contain the same active ingredient (Cyclobenzaprine Hydrochloride). Same strength and form. Confirm the switch with your doctor or pharmacist.

Indications & Uses

Spazlo is indicated for:

Pharmacology

Cyclobenzaprine is a skeletal muscle relaxant that works mainly on the central nervous system, not directly on the muscle itself. Its chemical structure is close to that of the tricyclic antidepressants, so the two groups share some properties. The medicine acts on the brain stem, where it reduces tonic somatic motor activity. In doing so it affects both the α and δ motor systems. Doctors usually prescribe it as an add-on treatment to ease painful muscle spasms that come with musculoskeletal conditions.

Dosage Reference

Reference Information Only

Dosages shown are general references from official sources. Always consult your doctor or pharmacist for personalized dosing.

Adults:

The usual dose of Cyclobenzaprine Hydrochloride is 5 to 10 mg three times daily, taken by mouth. The daily dose should not go above 60 mg. Treatment for more than 2 or 3 weeks is not recommended.

Dose in elderly

In older patients, Flexor should be started at 5 mg and then increased slowly.

Dose in hepatic impairment

Flexor should be used with caution in people with mild hepatic impairment. Start with the 5 mg dose and increase slowly. For people with moderate to severe impairment, Flexor is not recommended.

Pediatric use

The safety and effectiveness of Cyclobenzaprine Hydrochloride in pediatric patients below 15 years of age have not been established.

Side Effects

Flexor's most commonly reported side effects are drowsiness, dry mouth, and dizziness. Interestingly, these effects turned up less often in real-world surveillance than they did during the original controlled clinical trials.

Cautions & Contraindications

Warnings & Precautions

Because Flexor has atropine-like effects, it should be used cautiously in patients with a history of urinary retention, angle-closure glaucoma, or raised eye (intraocular) pressure, as well as in those already taking anticholinergic medicines.

Contraindications

Do not use cyclobenzaprine if you are allergic to any of its ingredients. You should also avoid it if you are taking a monoamine oxidase (MAO) inhibitor, or if you have stopped one within the last 14 days. Serious reactions, including high fever, seizures and deaths, have happened in patients who took cyclobenzaprine (or similar tricyclic antidepressants) together with MAO inhibitor medicines. Cyclobenzaprine should also not be used during the acute recovery phase of a heart attack (myocardial infarction), or if you have an arrhythmia, heart block, other conduction problems, or congestive heart failure. People with an overactive thyroid (hyperthyroidism) should not take it either.

Pregnancy & Breastfeeding

Pregnancy Category B. Cyclobenzaprine Hydrochloride should be used during pregnancy only if the potential benefit clearly justifies the possible risk. Nursing mothers should use this medicine with caution.

⚠️ Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.

Overdose

Deaths from a Cyclobenzaprine Hydrochloride overdose are rare, but they can happen. Signs of toxicity can appear quickly after an overdose, so the person needs to be monitored in a hospital as soon as possible.

⚠️ In an emergency call 999 or go to the nearest hospital emergency department.

Storage

Store Cyclobenzaprine Hydrochloride below 30°C, and keep it away from light and moisture. Keep it out of the reach of children.

Common questions about Spazlo 5 mg

What is Spazlo 5 mg Tablet?

Spazlo 5 mg Tablet is a medicine that contains Cyclobenzaprine Hydrochloride. It is made by Beximco Pharmaceuticals Ltd. It belongs to the Locally acting Skeletal Muscle Relaxants group of medicines.

What is Spazlo used for?

Spazlo is used for: Pain, Muscle Spasm.

What are the side effects of Spazlo?

Flexor's most commonly reported side effects are drowsiness, dry mouth, and dizziness. Interestingly, these effects turned up less often in real-world surveillance than they did during the original controlled clinical trials.

Can I take Spazlo during pregnancy or while breastfeeding?

Pregnancy Category B. Cyclobenzaprine Hydrochloride should be used during pregnancy only if the potential benefit clearly justifies the possible risk. Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.

What happens if I take too much Spazlo?

Deaths from a Cyclobenzaprine Hydrochloride overdose are rare, but they can happen. Signs of toxicity can appear quickly after an overdose, so the person needs to be monitored in a hospital as soon as possible. In an emergency call 999 or go to the nearest hospital emergency department.

How should I store Spazlo?

Store Cyclobenzaprine Hydrochloride below 30°C, and keep it away from light and moisture. Keep it out of the reach of children.

Do I need a prescription for Spazlo?

Spazlo is a prescription (Rx) medicine. Take it as your doctor advises.

Last updated: 15 Aug 2026