Side Effects - Fentanyl Transdermal Patch

Cold, clammy, or bluish-tinted skin and lips.

Shallow, slow, or difficult breathing.

Fentanyl overdose is a medical emergency. According to the Mayo Clinic and the NHS , key warning signs include: Inability to stay awake or be roused. Pinpoint Pupils: Very small, non-reactive pupils. Fentanyl Transdermal Patch Side Effects

Most users experience mild to moderate side effects as their body adjusts to the medication: Cold, clammy, or bluish-tinted skin and lips