FOSPHENYTOIN SODIUM vs ZTALMY

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 20, 2026·How we rate

Possible drug interaction. FOSPHENYTOIN SODIUM and ZTALMY 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	FOSPHENYTOIN SODIUM	ZTALMY
Rating	72/100	New
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	FOSPHENYTOIN SODIUM	GANAXOLONE
Manufacturer	Hikma	Immedica Pharma
Dosage forms	Injectable, Solution	Suspension
Drug class	Anti-Epileptic Agent	Neuroactive Steroid Gamma-Aminobutyric Acid A Receptor Positive Modulator
Boxed warning	Boxed warning	None
Treats	Seizures, Status Epilepticus	Seizures

fosphenytoin sodium ztalmy

Rating

72/100

New

Pharmacy pays

—

Type

Active ingredient

FOSPHENYTOIN SODIUM

GANAXOLONE

Manufacturer

Hikma

Immedica Pharma

Dosage forms

Injectable, Solution

Suspension

Drug class

Anti-Epileptic Agent

Neuroactive Steroid Gamma-Aminobutyric Acid A Receptor Positive Modulator

Boxed warning

None

Treats

Seizures, Status Epilepticus

Seizures

Frequently asked questions

What is the difference between Fosphenytoin Sodium and Ztalmy?

Fosphenytoin Sodium contains Fosphenytoin Sodium, while Ztalmy contains Ganaxolone — 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.