Yes — off-label prescribing is illegal and automatically constitutes malpractice.

Off-label prescribing is legal and common in psychiatric practice. The key question is whether the prescribing decision met the standard of care. If the use is supported by evidence and the patient was appropriately informed, the PMHNP has met the standard of care.

Off-label prescribing is only legal with written physician approval.

Off-label prescribing is legal but the PMHNP must obtain written consent specifically stating the use is off-label.