Not known Details About fentanyl detection machine
fentanyl, cyproheptadine. Possibly raises toxicity from the other by pharmacodynamic synergism. Modify Therapy/Keep track of Closely. Coadministration of fentanyl with anticholinergics might enhance risk for urinary retention and/or intense constipation, which can bring on paralytic ileus.Observe Closely (2)efavirenz will decrease the level or effe