Drug information provided by: IBM Micromedex
It is very important that your doctor check your or your child's progress closely while receiving this medicine to see if it is working properly. Blood tests may be needed to check for any unwanted effects.
This medicine may cause a rare, but serious blood problem called methemoglobinemia. The risk may be increased in children younger than 6 months of age, elderly patients, or patients with certain inborn defects. It is more likely to occur in patients receiving too much of the medicine, but can also occur with small amounts. Check with your doctor right away if you or your child has the following symptoms after receiving this medicine: pale, gray, or blue-colored skin, lips, or nails, confusion, headache, lightheadedness, fast heartbeat, or unusual tiredness or weakness.
Tell your doctor or nurse right away if you have the following symptoms with this medicine: anxiety, blurred vision, depression, drowsiness, lightheadedness, nausea or vomiting, numbness and tingling of the mouth or lips, restlessness, ringing in the ears, speech problems, or tremors.
This medicine may cause serious allergic reactions, including anaphylaxis, which can be life-threatening and require immediate medical attention. Call your doctor right away if you have a rash, itching, hoarseness, trouble breathing, trouble swallowing, or any swelling of your hands, face, mouth, or throat after receiving this medicine.
This medicine may also increase your risk of having serious heart and blood vessel problems such as a heart attack, heart rhythm changes, or low blood pressure. Check with your doctor if you have chest pain or discomfort, pain or discomfort in the arms, jaw, back, or neck, dizziness, fainting, pounding, slow heartbeat, troubled breathing, or unusual tiredness or weakness.
Before you have any medical tests, tell the medical doctor in charge that you are receiving this medicine. The results of some tests may be affected by this medicine.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.