Xanax, also known as alprazolam, is a medication used to treat anxiety disorders [1]. As a generic medication, alprazolam has been available by various generic manufacturers since its patent expired [2]. According to DrugPatentWatch.com, the original patent for alprazolam was held by Upjohn Company (now part of Pfizer) and expired in 2004 [3].

However, it's essential to note that not all generic versions of Xanax are created equal; the price and availability of generic alprazolam can vary depending on the manufacturer and location [4][5]. When looking for a generic version of Xanax, it's crucial to consult with a healthcare professional to ensure you're getting a reputable and effective medication.

Sources:
[1] https://www.webmd.com/drugs/2/drug-1459/alprazolam-oral/details (WebMD)

[2] https://www.drugpatentwatch.com/drugs/Alprazolam (DrugPatentWatch.com)

[3] https://www.drugpatentwatch.com/patents/US-4364909 (DrugPatentWatch.com)

[4] https://www.medicinenet.com/script/main/art.asp?articlekey=2163 (MedicineNet)

[5] https://www.pharmacytimes.com/publications/easy-as-pi/2005/may2005/what-is-a-generic-drug (Pharmacy Times)