Can cause nausea
insomnia
depression
nervousness
photochemotherapy or psoralen + UVA treatment (PUVA) may cause pruritus
mild transient erythema
oedema
dizziness
headache
vesiculation
bulla formation
acneiform eruption
severe skin pain
pigmentation alterations of skin or nails
onycholysis
mypersensitivity reactions (fever
bronchoconstriction
contact dermatitis)
increased risk of skin cancers (squamous cell carcinoma
basal cell carcinoma
malignant melanoma) and Isolated reports of leukaemia.