Cyclobenzaprine Capsules

Cyclobenzaprine hydrochloride, USP is a white, crystalline tricyclic amine salt with the empirical formula C20H21N·HCl and a molecular weight of 311.9. It has a melting point of 217°C, and a pKa of 8.47 at 25°C. It is freely soluble in water and alcohol, sparingly soluble in isopropanol and insoluble in hydrocarbon solvents. If aqueous solutions are made alkaline, the free base separates. Cyclobenzaprine HCl, USP is designated chemically as 3-(5H-dibenzo[a,d]cyclohepten-5-ylidene)-N, N-dimethyl-1- propanamine hydrochloride, and has the following structural formula:

Cyclobenzaprine hydrochloride, USP is supplied as a 5 mg or 10 mg tablet for oral administration. Cyclobenzaprine hydrochloride tablets USP, 5 mg and 10 mg, contain the following inactive ingredients: croscarmellose sodium, D&C Yellow #10 aluminum lake, FD&C Blue #2 aluminum lake,
FD&C Yellow #6 aluminum lake, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol, silicon dioxide, talc and titanium dioxide.

Serotonin Syndrome

The development of a potentially life-threatening serotonin syndrome has been reported with Cyclobenzaprine Hydrochloride when used in combination with other drugs, such as selective serotonin reuptake inhibitors (SSRIs), serotonin norepinephrine reuptake inhibitors (SNRIs), tricyclic antidepressants (TCAs), tramadol, bupropion, meperidine, verapamil, or (MAO) inhibitors. The concomitant use of Cyclobenzaprine Hydrochloride with MAO inhibitors is contraindicated (see CONTRAINDICATIONS). Serotonin syndrome symptoms may include mental status changes (e.g., confusion, agitation, hallucinations), autonomic instability (e.g., diaphoresis, tachycardia, labile blood pressure, hyperthermia), neuromuscular abnormalities (e.g., tremor, ataxia, hyperreflexia, clonus, muscle rigidity) and/or gastrointestinal symptoms (e.g., nausea, vomiting, diarrhea). Treatment with Cyclobenzaprine Hydrochloride and any concomitant serotonergic agents should be discontinued immediately if the above reactions occur and supportive symptomatic treatment should be initiated. If concomitant treatment with Cyclobenzaprine Hydrochloride and other serotonergic drugs is clinically warranted, careful observation is advised, particularly during treatment initiation or dose increases (see PRECAUTIONS, Drug Interactions ).

Cyclobenzaprine is closely related to the tricyclic antidepressants, e.g., amitriptyline and imipramine. In short term studies for indications other than muscle spasm associated with acute musculoskeletal conditions, and usually at doses somewhat greater than those recommended for skeletal muscle spasm, some of the more serious central nervous system reactions noted with the tricyclic antidepressants have occurred (see WARNINGS, below, and ADVERSE REACTIONS).

Tricyclic antidepressants have been reported to produce arrhythmias, sinus tachycardia, prolongation of the conduction time leading to myocardial infarction and stroke. Cyclobenzaprine hydrochloride may enhance the effects of alcohol, barbiturates and other CNS
depressants.

Pharmacologic similarities among the tricyclic drugs require that certain withdrawal symptoms be considered when cyclobenzaprine hydrochloride is administered, even though they have not been reported to occur with this drug. Abrupt cessation of treatment after prolonged administration rarely may produce nausea, headache and malaise. These are not indicative of addiction.

For most patients, the recommended dose of cyclobenzaprine hydrochloride tablets, USP is 5 mg three times a day. Based on individual patient response, the dose may be increased to 10 mg three times a day. Use of cyclobenzaprine hydrochloride tablets, USP for periods longer than two or three weeks is not recommended (see INDICATIONS AND USAGE).

Less frequent dosing should be considered for hepatically impaired or elderly patients (see PRECAUTIONS, Impaired Hepatic Function, and Use in the Elderly).

Cyclobenzaprine hydrochloride tablets, USP 5 mg are supplied as butterscotch yellow-colored, capsule-shaped, film-coated convex tablets, debossed with "AN40" on one side and plain on the other side.
They are available as follows:
100 count bottle      NDC 69336-104-10
500 count bottle      NDC 69336-104-50  
1000 count bottle    NDC 69336-104-11

Cyclobenzaprine hydrochloride tablets, USP 10 mg are supplied as butterscotch yellow, round, filmcoated convex tablets, debossed with "AN41" on one side and plain on the other side.
They are available as follows:

100 count bottle       NDC 69336-105-10
500 count bottle       NDC 69336-105-50
1000 count bottle      NDC 69336-105-11

Storage and Handling

Store at 20° to 25°C (68° to 77°F); excursions permitted to 15° to 30°C (59° to 86°F) [See USP Controlled Room Temperature]. This container is not intended for household use. Dispense contents with a child-resistant closure (as required) and in a tight, light-resistant container as defined in the USP.

KEEP THIS AND ALL MEDICATION OUT OF THE REACH OF CHILDREN.
Rx Only

Distributed by
Sterling-Knight Pharmaceuticals, LLC
Ripley, MS 38663

Rev. 11-2016-00