mostly from mothers of young children. Most articles included data from forums (13;46%), Twitter (5;18%) and Facebook (6;21%). 17 (61%) reported information about vaccines, 3 (11%) asthma medications and 8 (28%) other medicines.8 articles (28%) reported an ADR including tremor, auto-injector wounds and vaccine ADR. Only in one article the severity was reported. EO were reported in 25 (89%) studies and 10 (36%) articles mentioned a DRP. Studies reported lack of adherence (4;14%), difficulties (3;11%) or doubts (2;7%) about drug administration of asthma inhalers (2;7%), epinephrine auto-injector (1;4%), antibiotics (1;4%), oral drugs (1;4%), ophthalmic drugs (1;4%) and topical drugs (1;4%). Conclusion and RelevanceArticles evaluating pharmacological drugs in paediatrics focused mostly on EO and scarce data about ADR and DRP were mentioned in SM. Consequently, more studies are required to take advantage from SM as a potential tool in paediatric pharmacovigilance.