Scopus is a huge multidisciplinary database with citations and abstracts from peer-reviewed journal literature, trade journals, books, patent records, and conference publications. It is one of the largest scholarly literature databases.
Scopus allows you to do cited reference searching, so you can see what the author cited in their article, and what articles have cited that particular article.
Create an account in Scopus to save and edit searches, lists of references and create alerts.
Scopus does NOT use a controlled vocabulary (assigned subject headings), HOWEVER MeSH and Emtree (Embase subject headings) terms are listed for articles that have them, and can be searched as keywords
Use the title, abstract, keyword search field code for your keyword searches ie. TITLE-ABS-KEY(polypharmacy)
Look in your target articles for Emtree terms as other possible keywords.
Use a ? to truncate a single letter in a word, i.e. wom?n would return woman or women
Use a * to truncate for multiple letters, i.e. computer* would return computer, computers, computerization…
Use the Search History to combine previous searches