Anterograde amnesia, behaviour disorders, impaired consciousness, irritability, aggressiveness, agitation, hallucinations, somnambulism, physical & psychic drug dependence, feeling of ebriety, headache, ataxia, confusion, drowsiness, insomnia, nightmares, tension, change in libido; skin rash, pruritis (itching), superficial or deep (angioedema) urticaria, hyperhidrosis; muscle hypotonia, asthenia, unsteady gait or falls; diplopia; diarrhoea, nausea, vomiting, abdominal pain; elevated liver enzymes; angioedema (eg, Quincke's edema).