Tenn. Code Ann. 63-1-152(d), (g)
Liability: Administration of Opioid Antagonist
An individual who has an opioid antagonist for the purpose of giving it to another person believed to be at risk of experiencing an opioid-related overdose and, in good faith, administer teh opioid antagonist will not be held legally responsible. They can be held legally responsible if acting with extreme carelessness or intent to cause harm.
Prescription, dispensation, and administration of opioid antagonists -- Immunity of certain individuals -- Training of first responders
(d) A person who receives an opioid antagonist that was prescribed pursuant to subsection (b) may administer an opioid antagonist to another person if: (1) The person has a good faith belief that the other person is experiencing an opioid related drug overdose; and (2) The person exercises reasonable care in administering the drug to the other person. . . . . (g) The following individuals are immune from civil liability in the absence of gross negligence or willful misconduct for actions authorized by this section: (1) Any licensed health care practitioner who prescribes or dispenses an opioid antagonist pursuant to subsection (b); and (2) Any person who administers an opioid antagonist pursuant to subsection (d).