Prohibition never actually banned whiskey — you just needed a doctor's note, and Congress spent 13 years regulating America's boozy prescription pads.
Prohibition had a built-in exception that kept whiskey flowing for 13 years: the Volstead Act allowed licensed physicians to prescribe 'medicinal liquor' to their patients, and pharmacies could legally dispense it. Alcohol never left the drugstore shelf — it just required paperwork.
Doctors prescribed whiskey for an impressively vague list of ailments, from anxiety to influenza to cancer. With a prescription in hand, a patient could legally walk out of a pharmacy with a pint of liquor roughly every ten days.
The loophole was lucrative enough that Congress moved to tighten it early. The Willis-Campbell Act of 1921 — also known as the 'anti-beer bill' — restricted how druggists and physicians could dispense alcohol, amending the original Prohibition rules just two years in.
Bootleggers noticed the loophole too. Criminal operations bought up pharmacies and distillery licenses to move 'medicinal' whiskey by the truckload, making the prescription system one of Prohibition's leakiest seams.
The Medicinal Liquor Prescriptions Act of 1933 aimed to clean up the system by eliminating official prescription forms and replacing them with revenue stamps for prescription blanks — putting the taxman directly in the middle of every legal drink.
The bill's first attempt barely survived the House, passing 168–160 on February 25, 1933, as the 72nd Congress raced against its March 4 expiration. A new bill was then rushed through in four days flat: introduced March 28, through the Senate March 29, through the House March 30, and signed March 31.
President Franklin D. Roosevelt signed the act on March 31, 1933, in his first month in office — even as his administration was already dismantling Prohibition itself. The 21st Amendment repealed Prohibition entirely just eight months later, making medicinal whiskey prescriptions instantly obsolete.