Haldol (haloperidol) is less likely to cause weight gain and sedation, but more likely to cause movement disorders compared to other antipsychotics.

How much weight do you gain on Haldol?

Obesity in the mentally ill is of utmost concern to clinicians as it has been linked to the use of psychotropic medications, especially antipsychotics. Several studies have observed mean weight gain of 6–10 (mean 4.15) kg with olanzapine, 2–4 (mean 2.10) kg with risperidone and 0.5–2 (mean 1.08) kg with haloperidol.

Which antipsychotics cause the most weight gain?

Olanzapine and zotepine caused significantly more weight gain than most other antipsychotics. Another head-to-head meta-analysis reported that olanzapine and clozapine cause the highest amount of weight gain, while quetiapine, risperidone and sertindole caused intermediate amounts.