ing ements . ▁These ▁in fr ing ements ▁are ▁pun ish able ▁by ▁up ▁to ▁three ▁years ▁of ▁imprison ment ▁and / or ▁a ▁fine . ▁▁ ▁Since ▁ 2 0 1 7 , ▁legal ▁can nab is , ▁also ▁known ▁as ▁" low - TH C ▁we ed ", ▁with ▁less ▁than ▁ 1 . 0 % ▁of ▁TH C ▁is ▁sold ▁at ▁nearly ▁every ▁to b acco ▁store . ▁In ▁March ▁ 2 0 1 9 , ▁a ▁Swiss ▁Federal ▁Administr ative ▁Court ▁u ph eld ▁the ▁tax ation ▁scheme ▁by ▁custom s ▁officials , ▁which ▁imp ose ▁a ▁tax ▁of ▁CH F 3 8 ▁($ 3 7 . 7 0 ) ▁per ▁kil o ▁as ▁well ▁as ▁ 2 5 % ▁of ▁the ▁ret ail ▁re venue . ▁ ▁Medical ▁use ▁Currently ▁only ▁one ▁n arc otic ▁can nab is ▁drug ▁prepar ation ▁is ▁officially ▁approved ▁for ▁medical ▁use ▁in ▁Switzerland . ▁ ▁However , ▁with ▁the ▁ad option ▁of ▁a ▁revision ▁in ▁federal ▁n arc ot ics ▁reg ulations ▁accepted ▁by ▁popular ▁vote ▁in ▁ 2 0 0 8 , ▁and ▁in ▁effect ▁since ▁ 2 0 1 1 , ▁Swiss ▁phys icians ▁can ▁obtain ▁a ▁special ▁permit ▁from ▁the ▁Federal ▁Office ▁of ▁Public ▁Health ▁for ▁their ▁patients ▁with ▁the ▁allow ance ▁to ▁pres cribe ▁medical ▁can nab is ▁for ▁ 1 2 ▁months . ▁Only ▁two ▁ph arma cies ▁in ▁the ▁country ▁are ▁permitted ▁to ▁disp ense ▁can nab is ▁t inct ures ▁and ▁can nab is ▁oil