korea oriental instant medicinal centre korea oriental instant medicinal centre the korea oriental instant medicinal centre (korean: 조선동방즉효성약물센터 or 조선동방즉효약물개발사) is a state-owned north korean pharmaceutical company founded in 1968. it is best known for selling neo-viagra-y.r., an alleged traditional korean (koryo) medical supplement, whose active ingredient is 50 mg of sildenafil (viagra), combined with korean herbal medicines. korea oriental instant medicinal centrelogo for the companyindustrypharmaceuticalbiotechnologyfounded1968 (1968) in pyongyangheadquartersnorth koreaproductspharmaceuticals products neo-viagra-y.r. tongbanghangamso(동방항암소):medicine for purported cancer treatment made from korean traditional medicine ingredients such as ginseng and eleutherococcus (known in korean as ogapi). hyolgwansechokso(혈관세척소):medicine purported to have blood vessel cleaning effects using ingredients such as herb extracts.