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Is Otezla (apremilast) an immunosuppressant?

Medically reviewed by Melisa Puckey, BPharm. Last updated on April 10, 2025.

Official Answer by Drugs.com

Otezla is used in psoriasis, psoriatic arthritis, and Behçet's Disease as it reduces inflammation
by regulating inflammatory mediators produced by immune cells.
It does this by blocking an enzyme called phosphodiesterase-4 (PDE4), which modifies the inflammatory response by

This results in reduced inflammation and a reduction in symptoms.

Does Otezla lower immunity?

Otezla is thought to have a greater effect on innate immunity compared to adaptive immunity, with no effect on T-cell or B-cell expansion. This may explain why clinical studies show a lower risk of serious infection.

References
  • Apremilast is a selective PDE4 inhibitor with regulatory effects on innate immunity: https://www.sciencedirect.com/science/article/pii/S0898656814001909
  • Psoriasis Pathogenesis and Treatment: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6471628/
  • Otezla Medication Information: https://www.drugs.com/pro/otezla.html

Read next

Sotyktu vs Otezla: How do they compare?

Sotyktu and Otezla are both oral prescription medicines used to treat moderate-to-severe plaque psoriasis, but they work in different ways. Sotyktu blocks a protein called TYK2 (tyrosine kinase 2) to help lower inflammation and improve the severity and number of psoriasis lesions. Otezla works by blocking the phosphodiesterase type 4 (PDE4) enzyme to lower inflammation. Continue reading

How long does it take for Otezla to work?

Otezla (apremilast) is approved to treat plaque psoriasis in adults and children 6 years and older (and weighing at least 20 kg), as well as psoriatic arthritis and Behçet’s Disease in adults. Patients may start to feel an improvement within the first few weeks, but symptoms can further improve over 12 to 16 weeks. Continue reading

Who makes Otezla and why is it so expensive?

Otezla is made by Amgen Inc, located in Thousand Oaks, California. Otezla is expensive because it is the original, brand name drug and Otezla's manufacturer sponsored the clinical development. The lower-cost generic option called apremilast was approved by the FDA in February 2021, but may not yet be on the market. Continue reading

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