Last reviewed 2026-04-19 · How we verify

IR Viloxazine

Supernus Pharmaceuticals, Inc. · Phase 1 active Small molecule

IR Viloxazine is a Small molecule drug developed by Supernus Pharmaceuticals, Inc.. It is currently in Phase 1 development. Also known as: immediate-release viloxazine, SPN-812V immediate-release.

Likelihood of approval

9.6% vs 9.6% industry baseline

If approved by FDA: likely 2033–2036

Steps remaining: Phase 2 → Phase 3 → NDA/BLA submission

Confidence: Medium

Why this estimate

Baseline phase 1 → approval rate +9.6pp
Industry-wide phase 1 drugs reach approval ~9.6% of the time (BIO/Informa 2023 industry benchmark across all therapeutic areas).

Predicted approval windows by jurisdiction (conditional on FDA approval)

Regulator	Country	Likely year	Lag vs FDA
FDA	US	2033–2036	—
EMA	EU	2034–2037	+0.7 yr
MHRA	GB	2034–2037	+0.7 yr
Health Canada	CA	2034–2038	+0.9 yr
TGA	AU	2034–2038	+1.2 yr
PMDA	JP	2034–2038	+1.5 yr
NMPA	CN	2035–2039	+2.3 yr
MFDS	KR	2034–2038	+1.4 yr
CDSCO	IN	2034–2039	+1.8 yr
ANVISA	BR	2035–2039	+2.3 yr

Hover any row for the lag rationale. Lag estimates are reduced when the drug has FDA Breakthrough or EMA PRIME designation (sponsors file globally in parallel).

Estimate based on the BIO/Informa industry phase transition rates plus per-drug modifiers for therapeutic area, sponsor type, FDA designations, mechanism, and trial design. Per-jurisdiction lags from Tufts CSDD international approval studies. Not investment, clinical or regulatory advice. Methodology: /methodology#likelihood.

At a glance

Generic name	IR Viloxazine
Also known as	immediate-release viloxazine, SPN-812V immediate-release
Sponsor	Supernus Pharmaceuticals, Inc.
Modality	Small molecule
Phase	Phase 1

Approved indications

No approved indications tracked.

Common side effects

No common side effects on file.

Key clinical trials

Evaluation of Immediate-Release Viloxazine in Adults With ADHD (PHASE1, PHASE2)

Primary sources

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

Source	Used for
ClinicalTrials.gov	Trial enrolment, design, endpoints, results

Competitive intelligence

For the full competitive landscape — auto-detected comparators, recent regulatory actions across the set, upcoming PDUFA, patent timeline, sponsor landscape:

IR Viloxazine CI brief — competitive landscape report
IR Viloxazine updates RSS · CI watch RSS
Supernus Pharmaceuticals, Inc. portfolio CI

Frequently asked questions about IR Viloxazine

What is IR Viloxazine?

IR Viloxazine is a Small molecule drug developed by Supernus Pharmaceuticals, Inc..

Who makes IR Viloxazine?

IR Viloxazine is developed by Supernus Pharmaceuticals, Inc. (see full Supernus Pharmaceuticals, Inc. pipeline at /company/supernus-pharmaceuticals-inc).

Is IR Viloxazine also known as anything else?

IR Viloxazine is also known as immediate-release viloxazine, SPN-812V immediate-release.

What development phase is IR Viloxazine in?

IR Viloxazine is in Phase 1.

Manufacturer: Supernus Pharmaceuticals, Inc. — full pipeline
Also known as: immediate-release viloxazine, SPN-812V immediate-release

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing