Drug A drug was a general term for a form of medicine . Drugs could have many beneficial uses : they could be used to cure , treat and sedate . ( TV : " The Daleks " , " The Edge of Destruction " ) They could also be used recreationally , like LSD , and were often addictive , like hashish and vraxoin . ( PROSE : " Dead Romance " , TV : " Marco Polo " , " Nightmare of Eden " ) A subsection of these recreational and often religious drugs were hallucinogenic drugs . ( PROSE : " The Left - Handed Hummingbird " , " Superior Beings " ) As PhiCorp was in league with the Three Families and were aware of the oncoming " Miracle Day " in 2011 , they stocked up metanec for at least a year before the event to make a profit off the public ' s great need for medication . ( TV : " Dead of Night " ) Development . Many drugs that were in development were so new that their properties were unknown ; only in combination could they function in a useful manner . ( TV : " Doctor Who and the Silurians " ) The Trees of Life on Tollip ' s World were reportedly capable of manufacturing a wide range of drugs and chemicals , including one with Hugo Tollip reckoned could give everlasting life . ( PROSE : " The Tree of Life " ) Pharmaceutical companies regularly tested drugs ' effectively , often on animal subjects , ( PROSE : " Warlock " ) but even sometimes on human s or other sentient species . ( TV : " Reset " , " New Earth " ) Acquisition . One could acquire drugs via pharmaceutical companies like PhiCorp , ( TV : " Dead of Night " ) at private stalls like at Pharmacytown , ( TV : " Gridlock " ) or through a drug dealer . ( PROSE : " The Novel of the Film " ) Usage . Drugs could be ingested orally , ( TV : " Dead of Night " ) by injection , ( TV : " " , " Rendition " , PROSE : " The Quantum Archangel " ) or by applying chemical patches to the skin . ( TV : " Gridlock " ) Aside from medical or recreational uses , relaxant drugs could be used as the closest one could ever get to a " truth drug " — they could break down some mental barriers and make people say things they normally wouldn ' t . ( PROSE : " Just War " ) Drugs could also be used to assist transformation ( i . e . into Cybermen ) and mutation ( i . e . into Dalek s ) . ( TV : " Attack of the Cybermen " , AUDIO : " The Time of the Daleks " ) Addiction . Excessive use of drugs could lead to drug addiction ; this was often the result of use of illicit drugs . ( PROSE : " Unnatural History " , " Wonderland " ) Victoria was at some point addicted to the fatal bubbleshake , but apparently got over it . ( PROSE : " Strange England " ) In the 51st century , John Hart went to rehab for drugs , alcohol , sex and murder . ( TV : " Kiss Kiss , Bang Bang " ) The Terpsechian s , on the other hand , thought drugs and alcohol good , and had no qualms against them in their society . ( PROSE : " The Glass Prison " ) By the year 5 , 000 , 000 , 053 , drugs were sold in New New York Undercity in the form of mood drug s , including Happy , Forget , Honesty and Sleep . When the Bliss drug became infected by a virus , killing everyone and everything outside the Motorway in seven minutes flat . When the Tenth Doctor arrived with Martha Jones , he shut down the dealers of Pharmacytown , where the moods were being sold . ( TV : " Gridlock " ) The 456 used child ren as a form of recreational drug which they called " the hit " . They therefore , in 2009 , demanded one tenth of the children of Earth for this use . ( TV : " " )