Medical Information Only: This medication is not sold on this site. The information provided is for reference purposes only. Please consult your local physician or pharmacist for treatment.
Ionsys Side Effects Center
Medically reviewed by Min Clinic Staff | Updated: January 2026
- Generic Name: fentanyl iontophoretic transdermal system
- Brand Name: Ionsys
Ionsys (Fentanyl Iontophoretic Transdermal System) side effects drug center
Ionsys Side Effects Center
What Is Ionsys?
Ionsys (fentanyl hydrochloride) Patch is a narcotic (opioid) pain medicine used to treat acute pain after surgery. The brand name Ionsys is discontinued, but generic versions may be available. Common side effects of Ionsys (fentanyl hydrochloride) include:
- nausea,