Relating to the authority of a physician to provide and dispense and to delegate authority to provide and dispense certain drugs.

HB 3878 clarifies that physicians in Texas may delegate to trained staff the administration, provision, or dispensing of prescription drugs for patients' immediate needs, while maintaining physician supervision. It defines key terms like "provision" (supplying unit doses) and specifies that delegated actions must comply with medical practice laws and drug regulations. The bill requires labeled containers for drugs dispensed under this authority and updates licensing code sections to reflect these delegation rules. This directly affects physicians, nurses, and other trained healthcare staff who handle patient medications in clinical settings. The changes aim to streamline medication access within physician offices without altering patient eligibility.