Last reviewed · How we verify

Tacrolimus Ointment 0.03%

Astellas Pharma Inc · FDA-approved active Small molecule

Tacrolimus is a calcineurin inhibitor that suppresses T-cell activation and cytokine production to reduce skin inflammation.

Tacrolimus is a calcineurin inhibitor that suppresses T-cell activation and cytokine production to reduce skin inflammation. Used for Atopic dermatitis (eczema), Vitiligo.

At a glance

Generic nameTacrolimus Ointment 0.03%
Also known asProtopic 0.03%, Tarolimus ointment, Protopic® 0.03%, Protopic
SponsorAstellas Pharma Inc
Drug classCalcineurin inhibitor
TargetCalcineurin (via FKBP12 binding)
ModalitySmall molecule
Therapeutic areaDermatology/Immunology
PhaseFDA-approved

Mechanism of action

Tacrolimus binds to the immunophilin FKBP12 and inhibits calcineurin phosphatase, preventing dephosphorylation and nuclear translocation of NFAT (nuclear factor of activated T cells). This blocks the transcription of pro-inflammatory cytokines such as IL-2, TNF-α, and IFN-γ, thereby reducing T-cell proliferation and inflammatory responses in the skin. When applied topically as an ointment, it provides localized immunosuppression without the systemic effects associated with oral calcineurin inhibitors.

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

Competitive intelligence

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