Lightheadedness, nervousness, apprehension, euphoria, confusion, dizziness, drowsiness, tinnitus, blurred vision, diplopia, nausea, vomiting, sensations of heat, cold or numbness, urinary retention, paraesthesia circumoral, paraesthesia, hyperacusis, twitching, tremors, convulsions, unconsciousness, resp depression &/or arrest, agitation, tongue numbness, difficulty swallowing, slurred speech; bradycardia, hypotension & CV collapse which may lead to cardiac arrest; maternal hypotension; spinal block of varying magnitude (including total spinal block), hypotension secondary to spinal block, loss of bladder, bowel control, perineal sensation, sexual function; backache, headache; cutaneous lesions, urticaria, oedema or anaphylactoid reactions; joint pain, stiffness, loss of motion.