Hutt, Peter BartonKisloff, Michelle A.2012-06-071995The H2 Blockers' Rx-to OTC Switch: For Whom Will It Spell Relief? (1995 Third Year Paper)http://nrs.harvard.edu/urn-3:HUL.InstRepos:8846781Tylenol. Advil. Monistat 7. Imodium AD. These are some of the most commonly used, widely available, and successful drugs in the United States. All of them began as drugs only available by a prescription. All of them made a successful prescription-only to over-the-counter (Rx-to-OTC) switch through the switch" mechanisms of the Food and Drug Administration (FDA). Due to the amount of money that pharmaceutical companies can make with an Rx-to-OTC switch, the FDA has received dozens of switch requests in the last few years, and it expects to receive many more in the near future.en-USFood and Drug LawH2 blockersHZ blockersRx to OTCPaper (for course/seminar/workshop)2012-06-07