Goodbye Is Always Implied - S6-E10
Continuity mistake: Near the end, when Vic is on the porch bench, she's holding a mug in her hand. When Walt goes to sit down, she's still holding it, but in the next shot her hands are empty and the mug is on the porch railing.
Answer: This appears to be movie fiction. In real life, a pharmacist could not legally give out confidential patient information without there being a search warrant. Not abiding by confidentiality laws could result in a pharmacist facing legal issues and losing his or her license.
raywest ★