It is very important that your doctor check the progress of you or your child at regular visits. This will allow your doctor to see if the medicine is working properly and to check for any unwanted effects.
Using this medicine to prevent or treat preterm labor can harm pregnant women. This medicine may increase risk of heart problems and other serious side effects when given to a pregnant woman for a long time. Use an effective form of birth control to keep from getting pregnant. If you think you have become pregnant while using the medicine, tell your doctor right away.
Check with your doctor at once if difficulty with breathing continues after using a dose of this medicine or if your condition gets worse.
You may also be taking an anti-inflammatory medicine (e.g., corticosteroids) for asthma along with this medicine. Do not stop taking the anti-inflammatory medicine even if your asthma seems better, unless you are told to do so by your doctor.
If you develop a skin rash, hives, or any allergic reaction to this medicine, stop using the medicine and check with your doctor right away.
Hypokalemia may occur with this medicine. Check with your doctor right away if you or your child have more than one of the following symptoms: convulsions; decreased urine; dry mouth; increased thirst; irregular heartbeat; loss of appetite; mood changes; muscle pain or cramps; nausea or vomiting; numbness or tingling in the hands, feet, or lips; shortness of breath; or unusual tiredness or weakness.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines for appetite control, asthma, colds, cough, hay fever, or sinus problems, and herbal or vitamin supplements.