H.R. 4681 would require the Administration to impose sanctions on foreign persons who facilitate or profit from the production or proliferation of Captagon. (Captagon is a brand name for a synthetic stimulant. Official production of Captagon has been discontinued, but it is still produced illicitly in some countries, including Syria.) The bill also would require the Administration to review and, within 180 days of enactment, report to the Congress on whether the sanctions should apply to eight listed people. It also would require the Administration to report to the Congress if it waives the imposition of sanctions required by the bill.