“…Identification, prevention, and resolution of drug therapy problems, including medications to avoid in certain patient subgroups, combined with organized drug stewardship programs for opioids, antibiotics, and anticoagulants, among others, forms the basis of pharmaceutical care in the perioperative setting. Numerous examples exist to illustrate how interprofessional teamwork and collaborative practice structures and standards facilitate interventions improve patient outcomes [ 159 , 160 , 161 , 162 , 163 , 164 ]. In Supplementary Materials File S1 , perioperative-specialty pharmacist practice examples with literature citations that improve patient outcomes through comprehensive medication management and identify both facilitators and barriers through drug stewardship programs are described [ 165 , 166 , 167 , 168 , 169 , 170 , 171 , 172 , 173 , 174 , 175 , 176 , 177 , 178 , 179 , 180 , 181 , 182 , 183 , 184 , 185 , 186 , 187 , 188 , 189 , 190 , 191 , 192 , 193 , 194 , 195 , 196 , 197 , 198 , 199 , 200 , 201 , 202 , 203 , 204 ...…”