Risperidone For Alzheimer's Disease
Risperidone is an antipsychotic drug used to treat delusions,hallucinations, and agitation.
Risperidone is more effective than haloperidol, a traditional antipsychotic drug
. Risperidone also causes far less extrapyramidal side effects, compared
with haloperidol [175-176].
Risperidone is given in doses
of 0.25 to 2.5 milligrams daily. In one study, alzheimer patients who were
highly aggressive and violent, were effectively calmed, without sedation, when
they were given up to 2.5 milligrams of risperidone daily . Approximately
64 percent of all demented patients show decreases in agitation and anxiety with
doses as low as 0.25 to 0.5 milligrams of risperidone daily
Risperidone does have side effects. At doses
greater than 1 milligram daily, the following side effects have been noted:
insomnia, agitation, headache, tremors, dizziness, constipation, and rapid
heartbeat . Sedation is experienced by less than 2 percent of patients .
Risperidone can also cause peripheral edema .