Abstract
Background To support reclassification in the UK of sildenafil citrate (50 mg) from prescription-only medicine to a pharmacy medicine (P status) under the brand name "Viagra Connect(®)", additional risk minimisation measures were implemented that included training materials and an optional checklist to assist community pharmacists in the safe supply of Viagra Connect(®) to suitable patients. Objective To evaluate the effectiveness of Viagra Connect(®) additional risk minimisation measures by assessing community pharmacists' participation in training, their knowledge of key risk messages, and utilisation of the checklist. Setting A post-authorisation safety study implemented as a web-based survey, conducted in a representative population of UK community pharmacists. Method A random sample of community pharmacists who received at least 1 request to supply Viagra Connect(®) within the past 6 months completed an online questionnaire of 33 closed-ended questions/statements with multiple-choice responses. Data were summarised using descriptive statistics. Main outcome measure Knowledge of key risk messages and dispensing practices communicated in the additional risk minimisation measures. Results The survey was completed by 345 community pharmacists. Respondents displayed a high level of knowledge of key risk messages, with ≥80 % selecting correct answers for 43/51 items. Nearly all respondents (90.1 %) reported that the training materials were useful/very useful, and reported using the checklist at the point of supply (91.9 %). Counselling of patients who requested Viagra Connect(®) was generally considered a positive exercise. Conclusions The Viagra Connect(®) additional risk minimisation measures were effective for education of community pharmacists and to ensure safe supply of Viagra Connect(®) behind-the-counter to patients.