A patient who has been taking theophylline at home reports having palpitations and jitteriness. Which of the following could interact with theophylline to increase side effects such as these?

Question

Quizplus · Accepted Answer

Ephedra is a sympathomimetic drug that can interact with theophylline, leading to increased heart rate, palpitations, and jitteriness. Acetaminophen, ibuprofen, and diphenhydramine do not interact with theophylline in this way.

A Patient Who Has Been Taking Theophylline at Home Reports