Home | Clinical Varenicline is effective in smoking cessation – if patients adhere Written by: Mark Greener | Published: 15 May 2017 Spanish research suggests it is effective in behavioural support Addiction. 2107. doi:10.1111/add.13855Varenicline combined with behavioural support helps about half of smokers to quit, new Spanish research suggests. However, the success of treatment depends strongly on adherence.Please login or register to read the rest of the article and to have access to downloads and comments. What do you think? Leave a comment below or tweet your views to @IndyNurseMag This material is protected by MA Healthcare Ltd copyright. See Terms and Conditions.