2. Theophylline

Theophylline is a compound that is taken by patients with emphysema, bronchitis, or asthma. Essentially, any disease that results in symptoms like shortness of breath or wheezing is qualified to be on this list as the reason for the aforementioned symptoms comes from the same trigger.

There will usually be an intrusion of heavy mucus in the windpipe and the bronchioles and the trachea will be constricted.

What Theophylline does is that it relaxes and smoothes out the muscles so that the patient can receive immediate relief.

Now, if you are familiar with the effects of coffee, then you will know that it has a similar effect on the body called vasodilation, which essentially also means it opens up blood vessels and stimulates the relaxation of muscles.

These two drugs can complement each other and result in some serious damage to the patient. It could lead to low blood pressure or heart palpitations.