Allergic reactions & anaphylaxis; nausea, sweating, dry mouth, dizziness, lightheadedness, headache, motor weakness, change in appetite, blurred vision, micturition disorders, psychic effects, worsening asthma, epileptiform convulsion, increased ICP, bradycardia, dependence, increased liver enzymes, affect reaction; retching, vomiting, constipation, GI irritation, dermal reactions.