1. Notwithstanding any other provision of law, a health care professional otherwise authorized to prescribe an opioid antagonist may, directly or by standing order, prescribe and dispense an opioid antagonist to a person at risk of experiencing an opioid-related drug overdose or to a family member, friend or other person in a position to assist a person at risk of experiencing an opioid-related drug overdose. Any such prescription must be regarded as being issued for a legitimate medical purpose in the usual course of professional practice. see full law