Haldol In The Elderly Haldol In The Elderly Haldol (Haloperidol Injection) Drug Information: Uses, Side. Haldol (Haloperidol Injection) Drug Information: Uses, Side. Learn about the prescription medication Haldol (Haloperidol Injection), drug uses, dosage, side effects, drug interactions, warnings, and patient labeling. HALDOLĀ® (haloperidol) Injection (For Immediate Release). WARNING. Increased Mortality in Elderly Patients with Dementia-Related Psychosis. HALDOL... read more