From the digestive system: nausea, vomiting, gastralgia.
From the nervous system: dizziness, headache, sleep disturbances, psychoses, epileptic seizures.
From the cardiovascular system: myocardial damage with changes on the electrocardiogram (ECG), lowering of blood pressure.
From the senses: with prolonged use - corneal opacity, retinal damage, visual impairment, ringing in the ears.
Allergic reactions: dermatitis, photosensitivity.
Other: myalgia, leukopenia, discoloration of the skin and hair.