6. Asthma Medication If you have asthma, a condition that can make your airways inflamed and irritated, your health care provider may prescribe a bronchodilator like aminophylline or theophylline.

Medically reviewed by Sohaib Imtiaz, MD Coffee contains caffeine, which can affect how your body absorbs and processes certain medications. If you take prescriptions, your healthcare provider may ...

Caffeine isn’t always harmless when you have asthma—in fact, it acts like a mild bronchodilator. But mixing it with asthma drugs like theophylline can raise the medicine’s levels in your ...

Bielory explains that caffeine is chemically related to the drug theophylline, which is used to treat asthma. It also reduces respiratory muscle fatigue, thereby opening the airways.

Asthma medications, which help relax lung muscles and widen airways, are another category affected by coffee. Caffeine, being a mild bronchodilator, can reduce the effectiveness of these medicines ...