Bronchodilators, Theophylline (Systemic)

Side Effects of This Medicine

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor as soon as possible if any of the following side effects occur:

Less common

Heartburn and/or vomiting

Rare

Hives, skin rash, or sloughing of skin (with aminophylline only)

Symptoms of toxicity

Abdominal pain, continuing or severe; confusion or change in behavior; convulsions (seizures); dark or bloody vomit; diarrhea; dizziness or lightheadedness; fast and/or irregular heartbeat; nervousness or restlessness, continuing; trembling, continuing

Other side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. However, check with your doctor if any of the following side effects continue or are bothersome:

Less common

Headache; fast heartbeat; increased urination; nausea; nervousness; trembling; trouble in sleeping

Other side effects not listed above may also occur in some patients. If you notice any other effects, check with your doctor.