Anemia; allergic reactions, hypersensitivity; dizziness, headache, convulsion, loss of consciousness, somnolence, syncope, paresthesia, paraplegia, paralysis; blurred vision, ptosis, miosis, enophthalmos; AV block, cardiac arrest, ventricular tachyarrhythmia, tachycardia, bradycardia; hypotension, flushing; resp arrest; laryngeal edema, apnea, sneezing; nausea, vomiting, oral hypoesthesia, loss of sphincter control; angioedema, urticaria, pruritus, hyperhidrosis, anhidrosis, erythema; back pain, muscle twitching, muscular weakness; bladder dysfunction; fetal distress syndrome; priapism; pyrexia; decreased cardiac output, ECG change; procedural pain.