Published by IPACS on 2026-01-13
Significantly slowed heartbeat or fainting. Safety Precautions
Constipation, nausea, vomiting, and loss of appetite.
Do not consume alcohol or other sedatives, as these can dangerously increase the risk of fatal respiratory depression.
Long-term use may lead to reduced fertility or sexual dysfunction (e.g., decreased libido or erectile dysfunction).
Fentanyl (transdermal route) - Side effects & dosage - Mayo Clinic