LETYBO vs MYOBLOC

Independent side-by-side comparison.

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

Possible drug interaction. LETYBO and MYOBLOC 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	LETYBO	MYOBLOC
Rating	New	New
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	LETIBOTULINUMTOXINA-WLBG	Botulinum Toxin Type B
Manufacturer	Hugel Inc	Elan Pharm
Dosage forms	Injectable	Injectable
Drug class	—	—
Boxed warning	Boxed warning	Boxed warning
Treats	Blepharospasm, Dystonia, Fissure in Ano	Sialorrhea, Torticollis, Dystonia

letybo myobloc

Rating

New

Pharmacy pays

—

Type

Active ingredient

LETIBOTULINUMTOXINA-WLBG

Botulinum Toxin Type B

Manufacturer

Hugel Inc

Elan Pharm

Dosage forms

Injectable

Drug class

—

Boxed warning

Treats

Blepharospasm, Dystonia, Fissure in Ano

Sialorrhea, Torticollis, Dystonia

Frequently asked questions

What is the difference between Letybo and Myobloc?

Letybo contains Letibotulinumtoxina-Wlbg, while Myobloc contains Botulinum Toxin Type B — 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.