SC Plaque psoriasis  Adult & patient who are anti-TNF-α inadequate responders 300 mg w/ initial dose at wk 0, 1, 2, 3 & 4 followed by mthly maintenance dose given as 1 SC inj of 300 mg or 2 SC inj of 150 mg. Patient ≥90 kg may derive additional benefit from 300 mg every 2 wk. 
Ped ≥50 kg 150 mg, may be increased to 300 mg in some patients, 
25 to <50 kg 75 mg, may be increased to 150 mg in some patients, 
<25 kg 75 mg. Each 75 & 150 mg dose is given as single dose. Each 300 mg dose is given as 1 SC inj of 300 mg or 2 SC inj of 150 mg. 
Psoriatic arthritis, axial spondyloarthritis, ankylosing spondylitis 150 mg w/ initial dose at wk 0, 1, 2, 3 & 4 followed by mthly maintenance dose, may be increased to 300 mg given as 1 SC inj of 300 mg or 2 SC inj of 150 mg. 
Patient w/ concomitant moderate to severe plaque psoriasis Follow adult plaque psoriasis dosage & administration. 
Non-radiographic axial spondyloarthritis 150 mg w/ initial dose at wk 0, 1, 2, 3 & 4 followed by mthly maintenance dose. 
Enthesitis-related arthritis & juvenile psoriatic arthritis Patients ≥50 kg 150 mg at wk 0, 1, 2, 3 & 4 followed by mthly maintenance dose given as single dose, 
<50 kg 75 mg at wk 0, 1, 2, 3 & 4 followed by mthly maintenance dose given as single dose.