Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Tremfya (guselkumab) and Otezla (apremilast) are both medications used to treat plaque psoriasis and active psoriatic arthritis. However, they belong to different medication classes and have distinct characteristics. Tremfya is a monoclonal antibody that is administered as an injection under the skin, while Otezla is a phosphodiesterase-4 (PDE-4) inhibitor taken orally. Tremfya is additionally approved for moderate-to-severe ulcerative colitis and Crohn's disease, whereas Otezla is also approved for treating mouth sores from Behçet’s disease. Tremfya is typically injected every 8 weeks after initial doses, while Otezla is taken orally and requires a gradual increase in dosage over the first 5 days, eventually reaching a maintenance dose taken twice daily. Tremfya is only available as a brand-name medication, making it potentially more expensive, whereas generic versions of Otezla are available. Common side effects of Tremfya include upper respiratory infections and injection site reactions, while Otezla often causes nausea and diarrhea.
Tremfya (guselkumab)
Otezla (apremilast)
Tremfya (guselkumab)
Otezla (apremilast)
Summary of Tremfya vs. Otezla
Summary for Interleukin antagonist
Prescription only
Tremfya (guselkumab) is an injection for adults with certain inflammatory conditions. It helps treat plaque psoriasis, psoriatic arthritis, ulcerative colitis, and Crohn's disease. Tremfya (guselkumab) is a monoclonal antibody known as an interleukin antagonist. It calms your immune system to lower inflammation. The dosing schedule is every 1 or 2 months, depending on your condition and how far along you are in treatment. Side effects are upper respiratory infections, headache, and injection site reactions. There's also a risk of other infections and liver problems as long-term side effects.
Summary for PDE-4 inhibitor
Prescription only
Otezla (apremilast) is a tablet that's taken by mouth. It's used to treat plaque psoriasis, psoriatic arthritis, and mouth sores from Behçet’s disease. This medication belongs to the drug class called phosphodiesterase-4 (PDE-4) inhibitors. You usually start Otezla (apremilast) at a low dose. Then, the dose is slowly raised over 5 days to lower the risk of side effects like nausea and diarrhea. This medication is available as a brand-name medication. Generic versions of apremilast likely won't be available until at least 2028.