Combining Cyclobenzaprine Hydrochloride and Fentanyl is a major interaction and should generally be avoided without close medical supervision.
Patients may experience profound sedation, respiratory depression (ranging from hypoventilation to apnea), hypotension, and psychomotor impairment. This can lead to an increased risk of falls, accidental injury, and life-threatening respiratory compromise.
Mechanism: Fentanyl, an opioid analgesic, acts primarily on mu-opioid receptors in the central nervous system (CNS) to produce analgesia and respiratory depression. Cyclobenzaprine, a skeletal muscle relaxant, also exerts its effects through CNS depression, likely via its structural similarity to tricyclic antidepressants and its actions on brainstem centers. The co-administration of these agents results in additive CNS depressant effects.
Cyclobenzaprine Hydrochloride vs. Fentanyl
Compare Cyclobenzaprine Hydrochloride and Fentanyl: mechanism of action, indications, side effects, cost, and which may be right for you.
Drug A
Cyclobenzaprine Hydrochloride
Cyclobenzaprine Hydrochloride
Skeletal Muscle Relaxants
RxDrug B
Fentanyl
Fentanyl
Opioid Analgesics
RxQuick Comparison
| Category | Cyclobenzaprine Hydrochloride | Fentanyl |
|---|---|---|
| Drug Class | Skeletal Muscle Relaxants | Opioid Analgesics |
| Rx Status | Rx | Rx |
| Generic Available | No | No |
| Typical Cost | $10–$30/month | $150–$600/month |
Cyclobenzaprine Hydrochloride Overview
Cyclobenzaprine Hydrochloride is a muscle relaxant medication used to relieve muscle spasms caused by acute, painful muscle and bone conditions. It works by helping to relax the muscles, which can reduce pain, tenderness, and improve movement when used with rest and physical therapy. This medication is typically used for short periods to help you recover from these types of injuries.
Full Cyclobenzaprine Hydrochloride guide →Fentanyl Overview
FENTANYL (brand name: FENTANYL) is a Opioid Analgesics. 1 INDICATIONS AND USAGE Fentanyl transdermal system is indicated for the management of severe and persistent pain in opioid-tolerant patients, that requires an opioid analgesic and that cannot be adequately treated with alternative options, including immediate-release opioids. Patients considered…
Full Fentanyl guide →How Each Drug Works
Fentanyl
Fentanyl is an opioid agonist. Fentanyl interacts predominately with the opioid mu-receptor. These mu-binding sites are distributed in the human brain, spinal cord, and other tissues.
Approved Uses (Indications)
Cyclobenzaprine Hydrochloride
INDICATIONS AND USAGE Cyclobenzaprine hydrochloride tablets are indicated as an adjunct to rest and physical therapy for relief of muscle spasm associated with acute, painful musculoskeletal conditions. Improvement is manifested by relief of muscle spasm and its associated signs and symptoms, namely, pain, tenderness, limitation of motion, and restriction in activities of daily living. Cyclobenzaprine hydrochloride tablets should be used only for short periods (up to two or three weeks) because adequate evidence of effectiveness for more prolonged use is not available and because muscle spasm …
Fentanyl
Fentanyl transdermal system is indicated for the management of severe and persistent pain in opioid-tolerant patients, that requires an opioid analgesic and that cannot be adequately treated with alternative options, including immediate-release opioids. Patients considered opioid-tolerant are those who are taking, for one week or longer, at least 60 mg morphine per day, 25 mcg transdermal fentanyl per hour, 30 mg oral oxycodone per day, 8 mg oral hydromorphone per day, 25 mg oral oxymorphone per day, 60 mg oral hydrocodone per day, or an equianalgesic dose of another op…
Side Effects
Cyclobenzaprine Hydrochloride
Fentanyl
Cost Comparison
Cyclobenzaprine Hydrochloride
$10–$30/month
As a widely available generic, Cyclobenzaprine Hydrochloride is very affordable, especially with discount cards like GoodRx. Always compare prices at different pharmacies and consider using a coupon.
Fentanyl
$150–$600/month
As a brand-only medication, fentanyl can be expensive. Patients should check for manufacturer coupons or patient assistance programs, and compare prices at different pharmacies using discount cards.
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Medical Disclaimer
The information on RxGuide is intended for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician, pharmacist, or other qualified health provider with any questions you may have regarding a medical condition or medication. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.