Z-drugs are a group of non-benzodiazepine medications that are considered extremely effective in treating insomnia. The medications are known as Z-drugs because they start with the letter "Z". Z drugs emerged as effective sleeping tablets during the late 1980s. Two of the most popular Z-drugs include Zopiclone and Zolpidem.
Zopiclone is sold under the brand name Imovane. The sleeping tablet was approved in 1989 by the British National Health Service for the treatment of insomnia. The medication reduces the time it takes for a person to fall asleep at night. Moreover, the non-benzodiazepine medication prevents people from waking up throughout the night. Doctors also prescribe the medication for the treatment of muscle spasms due to its muscle relaxing properties.
Zolpidem on the other hand, is sold under the brand name Ambien. The medication contains the active ingredient Zolpidem Tartrate. This sleeping tablet works in a similar manner to Zopiclone in the treatment of insomnia.
On a final note, you must not use either of the two Z-drugs continuously for more than 4 weeks. These medications possess habit forming properties. It's best to use the medication on an on/off cycle. You must use the medication for a short period then take a break before using the medication again.