From clinical studies, mainly mild to moderate side effects such as dry mouth, headache, fatigue and somnolence have been reported commonly (above 1%). Further uncommon incidences of adverse reactions like asthenia or abdominal pain were observed. In addition to the adverse reported during clinical studies and listed as previously mentioned, very rare cases of the following adverse drug reactions have been reported in post-marketing experience: hypersensitivity including anaphylaxis, dyspnoea, nausea, angioneurotic oedema, pruritus, rash, urticaria and weight increased.