It depends if its immediate acting or the one you only get every so often. For the immediate acting one the half life is 21 hrs, so it would take 5 times that or 105 hrs (4.5 days) to get out of your system.
- Haldol Information for Consumers
- Haldol Information for Healthcare Professionals (includes dosage details)
- Side Effects of Haldol (detailed)
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