Which medication used for insomnia requires a tapering process if taken regularly to avoid dependence?

Eszopiclone is a non-benzodiazepine sleep medication commonly prescribed for insomnia. When taken on a regular basis over an extended period, there is a risk of tolerance and potential dependence, which makes it important for patients to taper off the medication rather than stopping abruptly. Tapering allows the body to adjust gradually to the absence of the drug, minimizing withdrawal symptoms and the return of insomnia symptoms.

The other medications listed, while they may have specific considerations, do not typically require a tapering process when used for insomnia. Buspirone is primarily used for anxiety and is not associated with dependence. Zaleplon is another non-benzodiazepine sleep aid, but it has a short half-life, which generally makes dependence less of a concern compared to eszopiclone. Carbamazepine is an anticonvulsant that does not directly relate to the treatment of insomnia in the same way and does not have the same tapering requirements for sleep disorders.