Imovane

The recommended initial dose is 3.75 mg (one-half of a 7.5 mg tablet). The dose can be increased to 5 mg and further to 7.5 mg if clinically indicated. In some patients, the higher doses result in zopiclone blood levels in the morning high enough to produce impairment of driving and other activities that require full alertness. The 7.5 mg dose should not be exceeded.

Common side effects are somnolence, dizziness, confusion, anterograde amnesia or memory impairment, feeling of drunkenness, euphoria, nightmares, agitation, anxiety or nervousness, hostility, depression, decreased libido, libido disorder, coordination abnormality, headache, hypotonia, tremor, muscle spasms, paresthesia, and speech disorder, palpitations, dysgeusia (bitter taste), dry mouth, coated tongue, bad breath, nausea, vomiting, diarrhea, constipation, anorexia or increased appetite.

Overdose is usually manifested by varying degrees of central nervous system depression ranging from drowsiness to coma according to the quantity ingested. In mild cases, symptoms include drowsiness, confusion, and lethargy; in more severe cases, symptoms may include ataxia, hypotonia, hypotension, methaemoglobinaemia, respiratory depression, and coma. Overdose should not be life threatening unless combined with other CNS depressants, including alcohol. Other risk factors, such as the presence of concomitant illness and the debilitated state of the patient, may contribute to the severity of symptoms and very rarely can result in fatal outcome. Symptomatic and supportive treatment in adequate clinical environment is recommended, attention should be paid to respiratory and cardiovascular functions. Gastric lavage or activated charcoal is only useful when performed soon after ingestion.

Zopiclone is indicated for the short-term treatment and symptomatic relief of insomnia characterized by difficulty in falling asleep, frequent nocturnal awakenings and/or early morning awakenings.

Zopiclone, a cyclopyrrolone derivative, is a short-acting hypnotic agent. This is structurally unrelated to existing hypnotics. However, the pharmacological profile of Zopiclone is similar to that of the benzodiazepines. Zopiclone pharmacological properties are: hypnotic, sedative, anxiolytic, anti-convulsant, muscle-relaxant. These effects are related to a specific agonist action at central receptors belonging to the GABA_A macromolecular complex, modulating the opening of the chloride ion channel.

Miscellaneous sedatives & hypnotics