[Study of the tolerability and effectiveness of a new sleep-inducing preparation].

Flurazepam hydrochloride was experimented on 43 patients aged 33-83 yr with various forms of insomnia over a period of 4 to 23 days (mean 11.66). There were no changes in the laboratory data and gastroenteric tolerance was also excellent. Chi-square analysis showed that both the quantity and quality of sleep were significantly improved (P less than 0,001). There was no evidence of assuefaction or withdrawal symptoms.