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Educational Medication GuideRxClass: Skeletal Muscle Relaxant

Cyclobenzaprine

Generic Name: Cyclobenzaprine

Common Brand Names: Flexeril, Amrix
Dosage Form:Tablet
Route:Oral
Pregnancy Category:B
Last Reviewed:9/21/2026

Uses & Medical Indications

Relieve muscle spasms

Medical Conditions Treated:

Acute musculoskeletal pain

Work Mechanism & Pharmacology

How It Works

Patient Overview of Work Mechanism

Cyclobenzaprine works at the cellular level to correct underlying biochemical imbalances, reduce clinical symptoms, and support overall health.

Clinical Mechanism of Action (MoA)

Cyclobenzaprine exerts targeted therapeutic activity by interacting with specific cellular receptors, enzymatic pathways, or biological signaling cascades to relieve symptoms and restore physiological balance.

Primary TargetCyclobenzaprine hydrochloride
Therapeutic FamilyAntispasmodic
Administration RouteOral

Dosage & Administration Guidelines

Adult Dosage

5-10 mg 3 times daily

Pediatric Dosage

Approved > 15 years

Elderly / Geriatric Considerations

Start at 5 mg

Maximum Dose Limit

30 mg/day

Renal Impairment:

N/A

Hepatic Impairment:

Avoid in moderate to severe impairment

Side Effects & Safety Warnings

Common Side Effects

Drowsiness, dry mouth, dizziness

Serious Adverse Reactions

Arrhythmias, serotonin syndrome

Contraindications:

MAOI use within 14 days, hyperthyroidism

Important Warnings & Precautions:

May impair mental/physical abilities

Interactions (Drugs, Food & Alcohol)

Drug-Drug Interactions:

MAOIs, CNS depressants

Food & Dietary Interactions:

N/A

Alcohol Interaction Warning:

Avoid, increases CNS depression

Pregnancy & Breastfeeding Safety

Pregnancy Safety

Generally safe

Breastfeeding / Lactation

Use caution

Patient Counseling & Practical Advice

How to Take:

Avoid driving or operating machinery

What to Do if You Miss a Dose:

Take as soon as remembered

Recommended Monitoring & Lab Tests:

Symptom relief, mental status

Related Medicines in Skeletal Muscle Relaxant

Emergency Medical Warning

When to Seek Urgent Medical Attention

Seek immediate emergency medical care (call emergency services or proceed to the nearest emergency department) if you experience signs of a life-threatening allergic reaction (anaphylaxis: facial, lip, tongue, or throat swelling causing airway obstruction), severe cutaneous blistering with skin peeling, sudden intense chest pain, or symptoms of overdose.

Emergency Safety Protocol: If an intentional or accidental overdose is suspected, contact your regional Poison Control Center or emergency services immediately. Do not induce vomiting unless strictly advised by emergency healthcare personnel.
Educational Sources & References

Content for Cyclobenzaprine was synthesized from standardized public health monographs, official pharmacopoeias, and health authorities:

  • Central Drugs Standard Control Organization (CDSCO) — National List of Essential Medicines
  • World Health Organization (WHO) — Model List of Essential Medicines
  • Indian Pharmacopoeia Commission (IPC) — Indian Pharmacopoeia Drug Monographs
  • National Health Service (NHS) — Medicines A to Z Clinical Guidelines
Published by: Medi Info Hub TeamLast Updated: 10/19/2026

The information provided on this website is for educational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition.