Allergic reactions: skin flush, rash, itching, palpitations, cyanosis, laryngeal edema, allergic shock, etc. Cardiovascular system: palpitations, cyanosis, increase, or decrease of blood pressure, arrhythmia. Nervous system: dizziness, headache. Respiratory system: difficulty breathing, chest distress, labored breathing, shortness of breath, and cough. Digestive system: nausea, vomiting, stomach ache, diarrhea, and abnormal liver function. Others: facial edema, conjunctival congestion, abnormal tears, phlebitis, lumbago, backache, and local numbness.