SummaryCyclobenzaprine is a small molecule drug that antagonizes ADRA2, 5-HT2A receptor, and H1 receptor, and has been approved for the treatment of muscle spasticity, fibromyalgia, stress disorders, low back pain, COVID-19, and post-COVID syndrome. Its mechanism of action reduces the excitability of motor neurons and skeletal muscles, while diminishing anxiety, pain, and inflammation. Johnson & Johnson developed the drug, first approved in 1977, but it can cause side effects like drowsiness, dry mouth, and dizziness, which requires careful monitoring by healthcare providers. Cyclobenzaprine can provide therapeutic benefits for a wide range of clinical indications, but its administration requires prudence, particularly for patients with underlying medical conditions, such as hepatic or renal impairment. Hence, healthcare providers must be well-informed regarding the patient's medical history before administering this medication. |
Drug Type Small molecule drug |
Synonyms (3-Dibenzo[a,d]cyclohepten-5-ylidene-propyl)-dimethyl-amine, Cyclobenzaprine, Cyclobenzaprine hydrochloride (USP) + [16] |
Action antagonists |
Mechanism 5-HT2A receptor antagonists(Serotonin 2a (5-HT2a) receptor antagonists), ADRA2 antagonists(Adrenergic receptors alpha-2 antagonists), H1 receptor antagonists(Histamine H1 receptor antagonists) |
Therapeutic Areas |
Active Indication |
Inactive Indication |
Originator Organization |
Inactive Organization |
License Organization |
Drug Highest PhaseApproved |
First Approval Date United States (26 Aug 1977), |
RegulationFast Track (United States) |
Molecular FormulaC20H22ClN |
InChIKeyVXEAYBOGHINOKW-UHFFFAOYSA-N |
CAS Registry6202-23-9 |
KEGG | Wiki | ATC | Drug Bank |
---|---|---|---|
D00772 | Cyclobenzaprine hydrochloride | - |
Indication | Country/Location | Organization | Date |
---|---|---|---|
Fibromyalgia | United States | 15 Aug 2025 | |
Fibromyalgia | United States | 15 Aug 2025 | |
Muscle Spasticity | United States | 26 Aug 1977 |
Indication | Highest Phase | Country/Location | Organization | Date |
---|---|---|---|---|
Acute low back pain | Phase 3 | China | 13 Apr 2018 | |
Stress Disorders, Post-Traumatic | Phase 3 | United States | 27 Mar 2017 | |
Myofascial Pain Syndromes | Phase 3 | United States | 01 Apr 2015 | |
Migraine Disorders | Phase 3 | United States | 01 Jul 2010 | |
acute stress | Phase 2 | United States | 25 Mar 2025 | |
Cognitive Dysfunction | Phase 2 | United States | 25 Mar 2025 | |
Fractures, Stress | Phase 2 | United States | 25 Mar 2025 | |
Pain | Phase 2 | United States | 18 Aug 2022 | |
Post Acute COVID 19 Syndrome | Phase 2 | United States | 18 Aug 2022 |
Phase 3 | 51 | Placebo SL Tablet (Placebo SL Tablet) | ljyzuhdbcl(ompuknxpjl) = daakdqevza eysebbtkpa (zrqutsmzkp, kxwtdxiiwa - dlwqjkpxey) View more | - | 25 Feb 2025 | ||
(TNX-102 SL Tablet, 2.8 mg) | ljyzuhdbcl(ompuknxpjl) = rpmohtjkxw eysebbtkpa (zrqutsmzkp, ymmjvgpmwp - bssuilsktf) View more | ||||||
Phase 3 | 519 | Placebo SL Tablet (Placebo SL Tablet) | zxrggsmzwe = jasrmmqmjr pzpkgjduvb (rkgylmbguc, hphlkwulvd - rrzeqfhexx) View more | - | 07 Feb 2025 | ||
(TNX-102 SL Tablet, 2.8 mg) | zxrggsmzwe = gbmzciydej pzpkgjduvb (rkgylmbguc, mnbiqpnnoh - wviltjrxhi) View more | ||||||
Phase 3 | 192 | Placebo SL Tablets | ubmxdulclr(osufjrtmmj) = vicnnbjmna tdzghdewwm (acmopkqrka, 1.90) View more | - | 06 Feb 2025 | ||
Phase 3 | 190 | Placebo+TNX-102 (Placebo - TNX-102 SL) | ptnbwkjtek = pmzybpmjjz sirsmgxnuc (jrbzwpqdww, uzebkkynyj - vfpsffjfkd) View more | - | 06 Feb 2025 | ||
TNX-CY-P301+TNX-102 SL (TNX-102 SL - TNX-102 SL) | ptnbwkjtek = iqvedrxdft sirsmgxnuc (jrbzwpqdww, yoywwfbpty - fngbrfifnk) View more | ||||||
Phase 2 | 159 | Placebo+TNX-102 (Placebo- TNX-102 SL 2.8 mg) | cconqjsike = owqnjqjifz tbxalvobmm (dkabltuegn, xkssnxfvor - iicqywpswq) View more | - | 06 Feb 2025 | ||
(TNX 102 SL 2.8 mg - TNX-102 SL 2.8 mg) | cconqjsike = eqjualprmi tbxalvobmm (dkabltuegn, sjhtvkkjji - ysgrcxcwwk) View more | ||||||
Phase 3 | 93 | Placebo+TNX-102 (Placebo - TNX-102 SL) | swuapzoomf = kwirgdxgtd xjzuzmdqpm (blfldkhvsn, noicumgnhh - qiilyuazvk) View more | - | 05 Feb 2025 | ||
TNX-CY-P301+TNX-102 SL (TNX-102 SL - TNX-102 SL) | swuapzoomf = vqqjanmoeu xjzuzmdqpm (blfldkhvsn, ixwdmnqhzy - yfdtumatdn) View more | ||||||
Phase 3 | 457 | (TNX-102 SL Tablet, 5.6 mg) | hmgukmtogr(rshmdmqzha) = vkkkokxvry ddjqblktdn (socdfqftfk, balhvaeaqd - gqgmjbjxae) View more | - | 20 Dec 2024 | ||
Placebo SL Tablet (Placebo SL Tablet) | hmgukmtogr(rshmdmqzha) = hznrrqpabo ddjqblktdn (socdfqftfk, vyanudobjt - ufnpjlompx) View more | ||||||
Phase 3 | 375 | TNX-CY-F301+TNX-102 SL (TNX-TNX) | ttcnnpoeae = knecbxooqj estycypuex (ylulzzidnp, pntdcfprxi - tgesibqzjj) View more | - | 11 Dec 2024 | ||
Placebo+TNX-102 (PBO-TNX) | ttcnnpoeae = mpoojwmxqg estycypuex (ylulzzidnp, fqfeasrbxb - iuavodlxdz) View more | ||||||
Phase 2 | 63 | (TNX-102 SL Tablet, 5.6 mg) | frldlqtsij(jxdtcwkuxl) = pawwmusvoq xfgsyxfpbs (cqonxexqjd, 0.34) View more | - | 26 Nov 2024 | ||
Placebo SL Tablet (Placebo SL Tablet) | frldlqtsij(jxdtcwkuxl) = aqtfaxjkcj xfgsyxfpbs (cqonxexqjd, 0.35) View more | ||||||
Phase 3 | - | moqzpkquha(yogkicnizv): P-Value = 0.00005 Met View more | Positive | 12 Aug 2024 | |||
Placebo |