Top Side Effects of Fentanyl (Injection)
abdominal painabnormal thinkingback painblack stoolsblurred visionbreathing difficulties with exertionbruisingchange in balancechange in walkingchanges in moodchest painchest tightnesschillsclumsinessconfusionconvulsionsconvulsionscoughcreamy white patches in mouthdecreased awarenessdecreased responsivenessdecrease in amount of urinedecrease in frequency of urinationdifficult breathingdifficult urinationdizzinessdry mouthextreme sleepinessfaintingfast breathingfast heartbeatfeeling things that are not therefevergeneral weaknessheadachehearing things that are not thereincrease in thirstirregular heartbeatlabored breathinglightheaded