Side Effects :
. constipation
. loss of appetite
. dry mouth
. dizziness
. extreme tiredness
. unusual dreams
. yawning
. sweating
. uncontrollable shaking of a part of the body
. pain, burning, numbness, or tingling in part of the body
. enlarged pupils (black circles in the centers of the eyes)
. changes in sexual desire or ability
. difficulty urinating
SERIOUS SIDE EFFECTS :
. rash
. hives
. swelling
. difficulty breathing
. fast heartbeat
. cough
. chest pain
. fever
. coma (loss of consciousness for a period of time)
. seizures
. hallucinations (seeing things or hearing voices that do not exist)
. fever, sweating, confusion, fast or irregular heartbeat, and severe muscle stiffness
. unusual bleeding or bruising
. nosebleeds
. small red or purple dots on the skin
. nausea
. vomiting
. diarrhea
. headache
. difficulty concentrating
. memory problems
. confusion
. weakness
. problems with coordination
. increased falls
. fainting