behind-the-counter drug
n.— «The Food and Drug Administration is considering creating a class of medicines dubbed “behind-the-counter” drugs.…The change would let consumers buy routine medicines—including pills for birth control, cholesterol management and migraines—without a prescription, as long as they discuss it with a pharmacist first.» —“‘Behind-the-counter’ drugs coming soon?” Star Tribune (Minneapolis-St. Paul, Minnesota) Oct. 5, 2007. (source: Double-Tongued Dictionary)