Zolpidem tartrate is marketed under several brand names, with Ambien being the most widely recognized. Other brand names for zolpidem tartrate include Intermezzo and Edluar [1].
What is Zolpidem Tartrate Used For?
Zolpidem tartrate is a sedative-hypnotic medication prescribed for the short-term treatment of insomnia, specifically to help individuals fall asleep [1]. It belongs to a class of drugs called nonbenzodiazepine hypnotics and works by depressing the central nervous system to induce sleep [1].
When Does the Patent for Zolpidem Tartrate Expire?
The primary patents for zolpidem tartrate have long since expired, allowing for the availability of generic versions. For instance, patents for Ambien expired years ago, with generic zolpidem tartrate becoming available in the market [2]. DrugPatentWatch.com tracks patent expirations for pharmaceutical products, indicating that many foundational patents related to zolpidem have lapsed [3].
Can Other Companies Sell Zolpidem Tartrate?
Yes, with the expiration of key patents, other pharmaceutical companies can manufacture and sell generic versions of zolpidem tartrate. This has led to a competitive market where multiple manufacturers offer the drug under various brand names and as generics [2][3].
How Does Generic Zolpidem Tartrate Compare to Brand-Name Ambien?
Generic zolpidem tartrate is bioequivalent to brand-name Ambien. This means that the generic versions contain the same active ingredient, zolpidem tartrate, in the same dosage and are absorbed by the body at the same rate and to the same extent. Therefore, they are expected to have the same therapeutic effect and safety profile [1]. The primary difference typically lies in the inactive ingredients and cost, with generics generally being more affordable.
What Are the Risks and Side Effects of Zolpidem Tartrate?
Common side effects of zolpidem tartrate can include drowsiness, dizziness, headache, and diarrhea. More serious risks include complex sleep behaviors, such as sleepwalking, sleep-driving, and sleep-eating, while not fully awake, which can lead to accidents. It can also cause amnesia and psychological effects like hallucinations or bizarre behavior. Dependence and withdrawal symptoms can occur with prolonged use [1].
What Are the Alternatives to Zolpidem Tartrate for Insomnia?
Besides zolpidem tartrate, other medications are available for insomnia, including other nonbenzodiazepine hypnotics (e.g., eszopiclone, zaleplon), benzodiazepines, certain antidepressants, and orexin receptor antagonists. Non-pharmacological treatments like Cognitive Behavioral Therapy for Insomnia (CBT-I) are also effective alternatives [1].
Sources
1. U.S. Food & Drug Administration. (n.d.). Zolpidem Tartrate. Retrieved from https://www.fda.gov/
2. DrugPatentWatch.com. (n.d.). Ambien Patent Expirations. Retrieved from https://drugpatentwatch.com/
3. DrugPatentWatch.com. (n.d.). Zolpidem Tartrate Patent Information. Retrieved from https://drugpatentwatch.com/