Eszopiclone is indicated for insomnia to improve and maintain quality sleep.

Insomnia (Difficulty in Falling asleep)

• The lowest dose effective for the patient should be used,
• Recommended initial dose is 1 mg, immediately before bedtime, with at least 7-8 hours remaining before the planned time of awakening. May increase dose if clinically indicated, to a maximum of 3 mg  
• Geriatric or debilitated patients: Dose should not exceed 2 mg
• Patients with severe hepatic impairment, or taking potent CYP3A4 inhibitors: Dose should not exceed 2 mg
• Do not take with or immediately after a meal 

Commonly reported side effects are-

• Taste disturbances
• Headache
• Somnolence
• Respiratory infection
• Dizziness
• Dry mouth
• Rash 
• Anxiety
• Hallucinations

Taste disturbances	Headache	Somnolence
Respiratory infections	Dizziness	Dry Mouth

• Effects of CNS depressants include impaired alertness and motor coordination, as well as the risk of morning impairment. The risk rises with the dose. Patients taking 3 mg should be advised not to drive or engage in activities requiring complete mental alertness the morning after use.
• Examine for Co-Morbid Conditions: Reevaluate if insomnia persists after 7 to 10 days of treatment.
• Severe Anaphylactic/Anaphylactoid Reactions (including angioedema and anaphylaxis): If such reactions occur, do not re-challenge.
• Abnormal Thinking, Behavioral Changes (such as hallucinations), and Complex Behaviors (such as "sleep-driving"): If this happens, you should evaluate it right away.
• A worsening of depression or suicidal ideation is possible: To avoid intentional overdose, prescribe the fewest number of tablets possible.
• Withdrawal Symptoms: Symptoms may occur if the dose is reduced or stopped abruptly.
• Elderly Patients: Use lower dose due to impaired motor, cognitive performance and increased sensitivity.
• Patients with hepatic impairment, impaired respiratory function, impaired drug metabolism or hemodynamic responses: Use with caution.