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Precautions
It is very important that your doctor check the progress of you or your child at regular visits to make sure that this medicine is working properly. Blood tests may be needed to check for unwanted effects.
This medicine may cause serious types of allergic reactions, including anaphylaxis. Anaphylaxis can be life-threatening and requires immediate medical attention. Call your doctor right away if you or your child have a rash; itching; hoarseness; lightheadedness, dizziness, or fainting; trouble with breathing; trouble with swallowing; or any swelling of your hands, face, or mouth after you receive this medicine.
Dizziness, lightheadedness, or fainting may occur, especially when you get up from a lying or sitting position suddenly. These symptoms are more likely to occur when you or your child begin using this medicine, or when the dose is increased.
This medicine contains benzyl alcohol which may cause serious reactions (e.g., gasping syndrome) for a newborn or premature infant. Discuss this with your doctor if you are concerned.
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