Cevimeline Hydrochloride

INDICATIONS AND USAGE Cevimeline hydrochloride capsules are indicated for the treatment of symptoms of dry mouth in patients with Sjögren’s Syndrome.

DOSAGE AND ADMINISTRATION The recommended dose of cevimeline hydrochloride capsules is 30 mg taken three times a day. There is insufficient safety information to support doses greater than 30 mg tid. There is also insufficient evidence for additional efficacy of cevimeline hydrochloride at doses greater than 30 mg tid.

CONTRAINDICATIONS Cevimeline hydrochloride capsules are contraindicated in patients with uncontrolled asthma, known hypersensitivity to cevimeline, and when miosis is undesirable, e.g., in acute iritis and in narrow-angle (angle-closure) glaucoma.

ADVERSE REACTIONS Cevimeline was administered to 1777 patients during clinical trials worldwide, including Sjögren’s patients and patients with other conditions. In placebo-controlled Sjögren’s studies in the U.S., 320 patients received cevimeline doses ranging from 15 mg tid to 60 mg tid, of whom 93% were women and 7% were men. Demographic distribution was 90% Caucasian, 5% Hispanic, 3% Black and 2% of other origin. In these studies, 14.6% of patients discontinued treatment with cevimeline due to adverse events. The following adverse events associated with muscarinic agonism were observed in the clinical trials of cevimeline in Sjögren’s syndrome patients: Adverse Event Cevimeline 30 mg (tid) n*=533 Placebo (tid) n=164 Excessive Sweating 18.7% 2.4% Nausea 13.8% 7.9% Rhinitis 11.2% 5.4% Diarrhea 10.3% 10.3% Excessive Salivation 2.2% 0.6% Urinary Frequency 0.9% 1.8% Asthenia 0.5% 0.0% Flushing 0.3% 0.6% Polyuria 0.1% 0.6% * n Is the total number of patients exposed to the dose at any time during the study. In addition, the following adverse events (≥3% incidence) were reported in the Sjögren’s clinical trials: Adverse Event Cevimeline 30 mg (tid) n*=533 Placebo (tid) n=164 Headache 14.4% 20.1% Sinusitis 12.3% 10.9% Upper Respiratory Tract Infection 11.4% 9.1% Dyspepsia 7.8% 8.5% Abdominal Pain 7.6% 6.7% Urinary Tract Infection 6.1% 3.0% Coughing 6.1% 3.0% Pharyngitis 5.2% 5.4% Vomiting 4.6% 2.4% Injury 4.5% 2.4% Back Pain 4.5% 4.2% Rash 4.3% 6.0% Conjunctivitis 4.3% 3.6% Dizziness 4.1% 7.3% Bronchitis 4.1% 1.2% Arthralgia 3.7% 1.8% Surgical Intervention 3.3% 3.0% Fatigue 3.3% 1.2% Pain 3.3% 3.0% Skeletal Pain 2.8% 1.8% Insomnia 2.4% 1.2% Hot Flushes 2.4% 0.0% Rigors 1.3% 1.2% Anxiety 1.3% 1.2% * n is the total number of patients exposed to the dose at any time during the study. The following events were reported in Sjögren’s patients at incidences of <3% and ≥1%: constipation, tremor, abnormal vision, hypertonia, peripheral edema, chest pain, myalgia, fever, anorexia, eye pain, earache, dry mouth, vertigo, salivary gland pain, pruritus, influenza- like symptoms, eye infection, post-operative pain, vaginitis, skin disorder, depression, hiccup, hyporeflexia, infection, fungal infection, sialoadenitis, otitis media, erythematous rash, pneumonia, edema, salivary gland enlargement, allergy, gastroesophageal reflux, eye abnormality, migraine, tooth disorder, epistaxis, flatulence, toothache, ulcerative stomatitis, anemia, hypoesthesia, cystitis, leg cramps, abscess, eructation, moniliasis, palpitation, increased amylase, xerophthalmia, allergic reaction. The following events were reported rarely in treated Sjögren’s patients (<1%): Causal relation is unknown: Body as a Whole Disorders : aggravated allergy, precordial chest pain, abnormal crying, hematoma, leg pain, edema, periorbital edema, activated pain trauma, pallor, changed sensation temperature, weight decrease, weight increase, choking, mouth edema, syncope, malaise, face edema, substernal chest pain Cardiovascular Disorders : abnormal ECG, heart disorder, heart murmur, aggravated hypertension, hypotension, arrhythmia, extrasystoles, t wave inversion, tachycardia, supraventricular tachycardia, angina pectoris, myocardial infarction, pericarditis, pulmonary embolism, peripheral ischemia, superficial phlebitis, purpura, deep thrombophlebitis, vascular disorder, vasculitis, hypertension Digestive Disorders : appendicitis, increased appetite, ulcerative colitis, diverticulitis, duodenitis, dysphagia, enterocolitis, gastric ulcer, gastritis, gastroenteritis, gastrointestinal hemorrhage, gingivitis, glossitis, rectum hemorrhage, hemorrhoids, ileus, irritable bowel syndrome, melena, mucositis, esophageal stricture, esophagitis, oral hemorrhage, peptic ulcer, periodontal destruction, rectal disorder, stomatitis, tenesmus, tongue discoloration, tongue disorder, geographic tongue, tongue ulceration, dental caries Endocrine Disorders : increased glucocorticoids, goiter, hypothyroidism He …

Drug Interactions: Cevimeline should be administered with caution to patients taking beta adrenergic antagonists, because of the possibility of conduction disturbances. Drugs with parasympathomimetic effects administered concurrently with cevimeline can be expected to have additive effects. Cevimeline might interfere with desirable antimuscarinic effects of drugs used concomitantly. Drugs which inhibit CYP2D6 and CYP3A3/4 also inhibit the metabolism of cevimeline. Cevimeline should be used with caution in individuals known or suspected to be deficient in CYP2D6 activity, based on previous experience, as they may be at a higher risk of adverse events. In an in vitro study, cytochrome P450 isozymes 1A2, 2A6, 2C9, 2C19, 2D6, 2E1, and 3A4 were not inhibited by exposure to cevimeline.

DESCRIPTION Cevimeline is cis-2’-methylspiro {1-azabicyclo [2.2.2] octane-3, 5’ -[1,3] oxathiolane} hydrochloride, hydrate (2:1). Its empirical formula is C 10 H 17 NOS.HCl.1/2 H 2 O, and its structural formula is: Cevimeline has a molecular weight of 244.79. It is a white to off white crystalline powder with a melting point range of 201 to 203°C. It is freely soluble in alcohol and chloroform, very soluble in water, and virtually insoluble in ether. The pH of a 1% solution ranges from 4.6 to 5.6. Inactive ingredients include lactose monohydrate, low substituted hydroxypropyl cellulose, hydroxypropyl cellulose, and magnesium stearate. Components of the capsule shell include gelatin, sodium lauryl sulfate, titanium dioxide and water. In addition to the ingredients listed above, imprinting black ink contains black iron oxide, butyl alcohol, isopropyl alcohol, propylene glycol, potassium hydroxide, shellac, strong ammonia solution, dehydrated alcohol and purified water. cevimeline-structure.jpg

MANAGEMENT OF OVERDOSAGE Management of the signs and symptoms of acute overdosage should be handled in a manner consistent with that indicated for other muscarinic agonists: general supportive measures should be instituted. If medically indicated, atropine, an anti-cholinergic agent, may be of value as an antidote for emergency use in patients who have had an overdose of cevimeline. If medically indicated, epinephrine may also be of value in the presence of severe cardiovascular depression or bronchoconstriction. It is not known if cevimeline is dialyzable.

HOW SUPPLIED Cevimeline Hydrochloride Capsules, 30 mg are available as white, hard gelatin capsules containing 30 mg of Cevimeline Hydrochloride. Cevimeline Hydrochloride Capsules are size 3 hard gelatin capsules with an opaque white cap and body. Cevimeline Hydrochloride capsules are imprinted with P 657 on both cap and body in black ink. Cevimeline Hydrochloride is supplied in child resistant bottles of: Bottles of 30: NDC 87063-180-30 (repackaged from NDC 16571-657-XX) Bottles of 60: NDC 87063-180-60 (repackaged from NDC 16571-657-XX) Bottles of 90: NDC 87063-180-90 (repackaged from NDC 16571-657-XX) Bottles of 100: NDC 87063-180-01 (relabeled from NDC 16571-657-10) Store at 25°C (77°F) excursions permitted to 15°-30°C (59°-86°F) [See USP Controlled Room Temperature]. Rx only Relabeled and Repackaged by: Enovachem PHARMACEUTICALS Torrance, CA 90501