The overdose drug Narcan is available in many states without a prescription

Forty-six states permit naloxone to be purchased without an individual prescription. Laws in the remaining states vary, with some permitting naloxone to be prescribed only for use on a patient of the prescriber, while others permit it to be prescribed for use on other people, such as friends and family members of the patient. In the District of Columbia, Narcan is available at retail pharmacies only via prescription. At least three community health organizations — HIPS, Family Medical and Counseling Service and Bread for the City — disburse it free without a prescription to clients and family members.

https://www.washingtonpost.com/national/health-science/the-overdose-drug-narcan-is-available-in-many-states-without-a-prescription/2018/01/05/7b9d2010-dac0-11e7-a841-2066faf731ef_story.html?utm_term=.54cd4cf0429c