Can cause numbness
muscle pain or weakness; uneven heart rate; feeling drowsy
restless
urinating less than usual or not at all; shallow breathing; tremors
confusion; nausea
upper stomach pain
itching
loss of appetite
dark urine
clay-colour stools
jaundice (yellowing of the skin or eyes); or severe skin reaction -- fever
sore throat
swelling in your face or tongue
burning in your eyes
skin pain
followed by a red or purple skin rash that spreads (especially in the face or upper body) and causes blistering and peeling.