It is very important that your doctor check your progress at regular visits to make sure that this medicine is working properly.
This medicine may cause your blood pressure to go down. Your doctor will check your blood pressure before you start the medicine and may check it during your regular office visits. You may also need to monitor your blood pressure at home. If you notice any changes to your recommended blood pressure, call your doctor right away.
Dizziness, lightheadedness, or fainting may occur after you use this medicine, especially when you get up suddenly from a lying or sitting position. Getting up slowly may help, but if the problem continues or gets worse, check with your doctor. Make sure you know how you react to this medicine before you drive, use machines, or do anything else that could be dangerous if you are dizzy or lightheaded.
Stop using this medicine and check with your doctor right away if you have chest pain; difficult, fast, or noisy breathing, sometimes with wheezing; blue lips and fingernails; pale skin; increased sweating; coughing that sometimes produces a pink frothy sputum; shortness of breath; or swelling in the legs and ankles. These may be signs of pulmonary edema (fluid in the lungs).
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.