Dry mouth, mouth ulcers, thirst, bad taste; burping or belching, indigestion, stomach pain, nausea, vomiting; constipation, diarrhoea, flatulence; bad breath; loss of appetite, wt loss; headache; trouble sleeping; dream abnormalities; drowsiness; feeling tired; sexual problems; dizziness; tremor; blurred vision; feeling anxious, agitated or restless; confusion & attention problems; tingling & numbness of hands, face, mouth & feet; yawning or throat tightness; difficulty urinating, urinating frequently or needing to urinate at night; irregular heart beat; hot & cold sweats; sore ears, sore throat; ringing in ears; muscle pain, stiffness or twitching; walking problems; flushing; skin rash; restless legs.