1.MDover-the-counter drugs can be obtained without a prescription (=a written order) from a doctor 〔药品〕无医生处方也可买到的,非处方的
2.American EnglishAmEBFS (abbreviation OTC) over-the-counter business shares are ones that do not appear on an officialstockexchangelist 〔股票〕场外买卖的,买卖双方直接交易的,非挂牌的