It is very important that your doctor check you closely while you are receiving this medicine. Blood tests may be needed to check for unwanted effects. You may also need to monitor your blood pressure at home. If you notice any changes to your normal blood pressure, call your doctor right away.
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 have a rash, itching, swelling of the face, tongue, and throat, trouble breathing, or chest pain after you receive the 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 begin using this medicine, or when the dose is increased.