*5.2.3 Use of over-the-counter drugs (OTC)*

The patient has to inform all the drugs they are using, including OTC, herbals, or other supplements, which helps the physician in identifying ADRs and DI. In a telephonic survey in North America, 34% cohort was taking at least one unintentional drug and 72% of them reported that they did not inform their clinician about this [47]. Herbal medications interact with the current regimen resulting in adverse effects. Severe bleeding with warfarin and ginkgo, garlic; exacerbation of extrapyramidal effects with neuroleptic drugs, and betel nut; potentiation of oral and topical corticosteroids by licorice are some of the examples [48].
