Yes but not smelling. Caffeine, the drug in coffee, has the same chemical formula as theophylline, a drug commonly used to treat asthma 25 years ago. While these drugs share the same chemical formula their 3-dimensional structures differ. That renders caffeine 100x less potent than theophylline as a bronchodilator but equally potent for side-effects. Caffeine is not recommended for the treatment of asthma.