Crossword clues for What's in an Rx 3 letters:TERRx notationTERPart of t.i.d., on an RxLACMilk, on an RxMEDRx itemOTCLike meds needing no RxTER3x on an RxTSPRx amt.TERRx specificationTERRx instructionMEDRx specTERThree times, in an RxTIDThree times daily, on an RxMDSRx writersDRSRx writers, oftenANAWord in an RxOTCLike non-Rx drugsTLCRN's Rx?OTCNon-RxOTCAvailable without an RxQIDFour times daily, in an RxMEDRxOTCAvailable sans RxDRSRX writersCCSRx amts.OTCNot RxODSAbuses an RxTERRx spec.FDAGovt. Rx watchdogQIDFour times a day, on an RxOTCWithout an RxDEANational Rx Take Back Day org.TERThree times a day, on an RxODSExceeds one's RxTERThree times, in Rx'sTIDThrice daily, on an RxTSPFrequent Rx doseTERThrice, in Rx'sEADThe same, in Rx.OTCAvailable w/o RxPRNAs needed, in Rx'sOTCNeeding no RxOMNEvery, in an RxFDARx overseerPDRRx bookQIDFour times a day, in an RxOTCSold without an RxFDARx watchdogTIDRx instructionCCSRx unitsDOCRx writer