From the nervous system: motor disinhibition, irritability, drowsiness, depression, asthenia, headache, dizziness, tinnitus, insomnia, mental agitation, imbalance, ataxia, exacerbation of epilepsy, anxiety, hallucinations, confusion;
From the gastrointestinal tract: nausea, vomiting, diarrhea, abdominal pain (including gastralgia) and bloating, dry mouth;
From the cardiovascular system: tachycardia, increased blood pressure, pain in the heart, arrhythmia, in elderly people may exacerbate coronary insufficiency;
Allergic reactions: hypersensitivity, anaphylactic reactions, including dermatitis, pruritus, urticaria and angioedema, fever;
On the part of the respiratory system: shortness of breath, asthma attacks;
From the side of metabolism: increase in body weight;
From the organs of hearing: Vertigo.