Last reviewed · How we verify

onabotulinumtoxinA 44 U

Allergan · Phase 3 active Biologic

onabotulinumtoxinA 44 U works by temporarily paralyzing muscles to treat various conditions.

onabotulinumtoxinA 44 U works by temporarily paralyzing muscles to treat various conditions. Used for Blepharospasm, Strabismus, Cervical dystonia.

At a glance

Generic nameonabotulinumtoxinA 44 U
Also known asBOTOX®, BOTOX® Cosmetic, onabotulinumtoxinA
SponsorAllergan
Drug classbotulinum toxin
Targetacetylcholine release
ModalityBiologic
Therapeutic areaNeurology
PhasePhase 3

Mechanism of action

It does this by blocking the release of acetylcholine, a neurotransmitter that signals muscle contraction. This results in a temporary reduction in muscle activity, which can help alleviate symptoms of conditions such as blepharospasm, strabismus, and cervical dystonia.

Approved indications

Common side effects

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results