FANAPT vs RISPERIDONE

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated June 7, 2026·How we rate

Possible drug interaction. FANAPT and RISPERIDONE are different prescription medicines. Combining or switching between them can cause interactions — talk to a pharmacist or prescriber before making changes. This page is not medical advice.

Attribute	FANAPT	RISPERIDONE
Rating	New	New
Pharmacy pays	—	~$2.07 /30
Type	RX	RX
Active ingredient	ILOPERIDONE	RISPERIDONE
Manufacturer	Vanda Pharms Inc	Sun Pharm Inds Inc
Dosage forms	Kit, Tablet	Solution, Tablet
Drug class	Atypical Antipsychotic	Atypical Antipsychotic
Boxed warning	Boxed warning	None
Half-life	—	about 3 hours in extensive CYP2D6 metabolizers (about 20 hours in poor metabolizers)
Treats	Schizophrenia	Autistic Disorder, Bipolar Disorder, Dementia

fanapt risperidone

Rating

New

Pharmacy pays

—

~$2.07 /30

Type

Active ingredient

ILOPERIDONE

RISPERIDONE

Manufacturer

Vanda Pharms Inc

Sun Pharm Inds Inc

Dosage forms

Kit, Tablet

Solution, Tablet

Drug class

Atypical Antipsychotic

Boxed warning

None

Half-life

—

about 3 hours in extensive CYP2D6 metabolizers (about 20 hours in poor metabolizers)

Treats

Schizophrenia

Autistic Disorder, Bipolar Disorder, Dementia

Frequently asked questions

What is the difference between Fanapt and Risperidone?

Fanapt contains Iloperidone, while Risperidone contains Risperidone — they have different active ingredients.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.