Hi-Tech Pharmacal chief executive David Seltzer visits the sterile packaging...

Hi-Tech Pharmacal chief executive David Seltzer visits the sterile packaging area in the Amityville plant. (June 3, 2003) Credit: Pablo Garcia Corradi, 2003

Amityville-based Hi-Tech Pharmacal Co. Inc. has gotten federal approval to sell a generic version of Zantac syrup, a treatment for duodenal ulcers.

The U.S. Food and Drug Administration granted final approval for ranitidine syrup, the generic for GlaxoSmithKline’s Zantac.

The potential annual market for ranitidine syrup, a treatment for heartburn or acid reflux, is about $21 million, the company said.

Ranitidine is a histamine-2 receptor antagonist (a group often called H2 blockers) that is prescribed to reduce stomach acid. These include cimetidine (Tagamet), famotidine (Pepcid), nizatidine (Axid) and ranitidine (Zantac).

A report in December indicated that popular acid-reduction drugs, including proton pump inhibitors and histamine-2 receptor antagonists, may raise the risk of pneumonia.

Photo: Hi-Tech Pharmacal chief executive David Seltzer visits the sterile packaging area in the Amityville plant.

Pfc. Raheen Tyson Heighter, of Bay Shore, was killed in Operation Iraqi Freedom. His mother has made it her mission to aid active-duty service members, veterans, first responders and Gold Star families. NewsdayTV's Virginia Huie reports. Credit: Randee Daddona; Photo credit: Cathy Heighter

'His sacrifice made a difference': Gold Star mother honors son's memory Army Pfc. Raheen Tyson Heighter, 22, of Bay Shore, was the first serviceman from Long Island killed in the Iraq War.

Pfc. Raheen Tyson Heighter, of Bay Shore, was killed in Operation Iraqi Freedom. His mother has made it her mission to aid active-duty service members, veterans, first responders and Gold Star families. NewsdayTV's Virginia Huie reports. Credit: Randee Daddona; Photo credit: Cathy Heighter

'His sacrifice made a difference': Gold Star mother honors son's memory Army Pfc. Raheen Tyson Heighter, 22, of Bay Shore, was the first serviceman from Long Island killed in the Iraq War.

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