These are some side effects of curacne:
Dermatological reactions: dry mucous membranes, skin rashes, dermatitis, pruritus, cheilitis, erythema (especially on the face), sweating, palmar-plantar desquamation and paronychia, nail dystrophy, increased proliferation of granulation tissue in the affected area, rarely - thinning hair, vasculitis, photosensitivity.
Senses: conjunctivitis, photophobia, decreased night vision, corneal opacity, weakening of the hearing.
CNS and peripheral nervous system: headache, rarely - depression, seizures, suicide, and in rare cases - intracranial hypertension.
Digestive system: nausea, rarely - colitis, bleeding from the gastrointestinal tract, transient elevation of liver transaminases and in rare cases - hepatitis.
Hematopoietic system: anemia, neutropenia, changes in platelet count, increased erythrocyte sedimentation rate.
Metabolism: increased concentrations of TG and glucose.
Musculoskeletal system: pain in muscles and joints, rarely - hyperostosis.
Other: nasal bleeding.
Rectal and topical using: 1-2 weeks of treatment may cause new eruptions, itching, swelling and redness.
Source:
http://www.catalog.md/drugs/curacne.html