Hydroxyzine is a generic drug that is produced by many pharmaceutical companies around the world, so there isn’t a single “home” for its manufacturing. The active‑ingredient is manufactured in facilities that meet Good Manufacturing Practice (GMP) standards, and the finished product is then packaged and sold under a variety of brand names.
Typical regions where hydroxyzine is produced
| Region | Example Companies (generic or brand‑name) |
|--------|-------------------------------------------|
| United States | Pfizer (brand name Atarax), Teva, Mylan, Sandoz, etc. |
| Europe | Bayer (Germany), Roche (Switzerland), Sanofi (France), Teva (Germany/Italy), etc. |
| Asia | Cipla (India), Sun Pharma (India), Hetero Labs (India), China’s Yunnan Baiyao, etc. |
| Other | Some generic versions are also made in the UK (GlaxoSmithKline, GSK), Canada, Brazil, and other countries with GMP‑certified facilities. |
These companies operate multiple manufacturing sites that are inspected by national and international regulatory bodies (e.g., FDA, EMA, WHO) to ensure quality, purity, and safety of the drug. The specific plant or city that produces a particular bottle of hydroxyzine can vary depending on the brand and the country where it is sold.
Key points to keep in mind
1. Regulation – All hydroxyzine manufacturers must comply with the strict quality standards set by regulatory authorities (FDA in the U.S., EMA in the EU, etc.).
2. Generic availability – Because hydroxyzine is no longer a brand‑name‑only drug (the original patents have expired), many generic manufacturers produce it, which broadens the geographic distribution of its manufacturing.
3. Supply chain transparency – Some companies provide information on their websites about the locations of their GMP‑certified manufacturing facilities. If you need the exact plant for a specific batch, you can usually contact the manufacturer directly or check the drug’s labeling (often the batch number and expiry date can be traced back to a particular site).
So, in short, hydroxyzine is produced in GMP‑certified facilities worldwide, with major manufacturing hubs in the U.S., Europe, and India (among others).