What are the most commonly reported side effects of apremilast in adults with psoriatic arthritis or plaque psoriasis?

The most commonly reported side effects of apremilast in adults with psoriatic arthritis or plaque psoriasis are diarrhoea (15.7%), nausea (13.9%), upper respiratory tract infections (8.4%), headache (7.9%) and tension headache (7.2%), mostly mild to moderate in severity.