The non-medicated IUD is
IUCD( Intrautrine devices) - These devices are plastic or metal objects placed in the uterus of the female by a doctor. These may be categorized as non- medicated IUDs (Lippes loop), copper releasing IUDs (Cu T, Cu 7) and the hormone releasing IUDs (Progestasert, LNG- 20). So, the correct answer is 'Lippes loop'.