INDIANAPOLIS -- A drug that could revolutionize the treatment of Alzheimer's is now being tested in Indianapolis.

Initial studies have found an antihistamine called Dimebon may improve the memories of Alzheimer's patients, 6News' Stacia Matthews reported.

The drug -- meant to treat hay fever -- was just tested on a small group of patients in Russia, where it seemed to stop or slow the progress of the disease, researchers said. After taking the drug for a year, the study showed patients improved in their daily activities, behavior and overall function.

Now Dimebon will be tested in the United States by health care companies including Indianapolis-based Agewell.

"There are a lot of changes that go on in the brain, I think, that are not just memory. So if a drug can help with that, any of those, any of those are a blessing. It reduces the overall pain for the individuals and for the people taking care of them," said Agewell Medical Director Dr. Stephen Rappaport.

The trial is open to patients with mild- to-moderate Alzheimer's and patients will be asked to commit to treatment for six months.

Those seeking more information are asked to call 317-846-9792.