This medicine has been developed for use in the eye only. It is not to be swallowed or injected. The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially Heart disease,Hyperthyroidism. It is very important to protect your eye from injury while it is still numb. Do not touch or rub the eye. Do not use additional eye drops in the eye until your doctor tells you to. Protect your eye from dust particles, sand, or anything that might cause irritation. Please consult your doctor when taking this medicine if you are pregnant. Ask your physician or pharmacist before taken another medicine.