Coca Anti Addictive Effect

Consumption of Coca tea alleviates withdrawal syndrome from Coffee-caffeine, and Tobacco-nicotine- Have personally tried for Coffee withdrawal successfully

 

Recent (1980s+) research focused upon coca as substitute for concentrated forms of cocaine, rather than a substitute for caffeine and nicotine containing products

https://apha.confex.com/apha/132am/techprogram/paper_92248.htm
http://www.amazon.com/Handbook-Cocaine-Addictions-Teobaldo-Llosa/dp/B004B9G5U0
http://www.encod.org/info/IMG/pdf/Oral_coca_en_pdf.pdf
http://www.dronet.org/sostanze/sos_pdf/cocaine21.pdf

Research previously (1870s+) indicates coca as a substitute for the stimulants - things containing caffeine or nicotine - and for depressants as opiates and alcohol

http://freedomofmedicineanddiet.blogspot.com/2008/03/coca-to-combat-opiate-alcohol-and.html
http://freedomofmedicineanddiet.blogspot.com/2008/03/coca-caffeine-substitute.html
http://freedomofmedicineanddiet.blogspot.com/2011/04/coca-as-tobacco-habit-cure.html

Note that the effects here of Coca and dilute cocaine stand in contrast to that of CONCENTRATED cocaine which has the opposite effect.