Table 3: Adverse effect profile of cholinesterase inhibitors
Adverse effect Donepezil   Rivastigmine   Galantamine
Nausea ++   ++   ++
Vomiting +++   +++   ++
Diarrhoea ++   +   +
Abdominal pain +   ++   +
Anorexia +   +++   ++
Asthenia, fatigue, malaise, myasthenia ++   +++    
Muscle cramps, myalgia +++        
Weight loss +   +++   ++
Dizziness, syncope vertigo +   ++   +