UCB Pharma, which developed and co-promotes antihistamine Zyrtec with Pfizer, opened its new US headquarters in Smyrna on Friday.

The 110,000 square foot facility is part of a campus including five buildings and covering 45 acres in northern Atlanta. UCB Pharma is part of UCB SA, which is based in Belgium.

The company’s US subsidiary is its fastest growing, with double-digit growth each of the past six years. UCB recently launched anti=epileptic drug Keppra and migraine medication FrovaT.

UCB: www.ucbpharma.com