Schizophrenic patients given Abilify (aripiprazole) lost 3 pounds in six months compared to a weight gain of 9.4 pounds in patients given Zyprexa (olanzapine) according to a new study.

A weight gain of 22-pound from the use of the antipsychotic drug clozapine might cause as many deaths as lives saved from suicide according to a recent paper from researchers at University of Maryland School of Medicine.

The United States Federal Drug and Food Administration defines weight gain related to any given drug as an increase of 7 percent of bodyweight. Based on this definition, one study reported that a 7 percent weight gain was observed in 29 percent of patients treated with Zyprexa (olanzapine), 25 percent treated with Seroquel (quetiapine), 18 percent with Risperdal (risperidone), and 9.8 percent treated with Geodon (ziprasidone).

There is a case report of a person who gained 95 pounds in a year-and-two-months when put on the antipsychotic drug Clozaril (clozapine).

A standard dose of the antipsychotic drug Clozaril (clozapine) causes an average weight gain of 9.8 pounds in two-and-a-half-months according to recent analysis.

The antipsychotic drug Clozaril (clozapine) causes an average weight gain of 3.7 pounds in one month according to recent paper.

A standard dose of the antipsychotic drug Zyprexa (olanzapine) causes an average weight gain of 9.1 pounds in two-and-a-half-months according to recent analysis.

The antipsychotic drug Zyprexa (olanzapine) causes an average weight gain of 5.1 pounds in one month according to recent paper.

A standard dose of the antipsychotic drug Mellaril (thioridazine), used to treat schizophrenia, causes an average weight gain of only 7 pounds in two-and-a-half-months according to recent analysis.

A standard dose of the antipsychotic drug Risperdal (risperidone) causes an average weight gain of 4.6 pounds in two-and-a-half-months according to recent analysis.

The antipsychotic drug Seroquel (quetiapine) causes an average of weight gain of 9 pounds in two months according to recent study from the University of Miami School of Medicine.

The antipsychotic drug Risperdal (risperidone) causes an average weight gain of 2.2 pounds in one month according to recent paper.

The antipsychotic drug Seroquel (quetiapine) causes an average of weight gain of 4 to 12 pounds in six weeks according to recent review paper from Germany.

The antipsychotic drug Seroquel (quetiapine) causes an average of weight gain of 4 pounds in one month according to recent review paper from Germany.

The antipsychotic drug Nipolept (zotepine), which is not available in the U.S., causes an average of weight gain of 5.1 pounds in one month according to recent review paper from Germany.

A standard dose of the antipsychotic drug Geodon (ziprasidone) causes an average weight gain of only 0.1 pounds in two-and-a-half-months according to recent analysis.

The antipsychotic drug Geodon (ziprasidone) causes an average weight gain of 1.8 pounds in one month according to recent paper.