“…Theophylline, a dimethylxanthine, is considered one of the most widely prescribed drugs to treat obstructive pulmonary diseases [1]. The structure is very related to caffeine [2], and theophylline occurs in coffee beans, cocoa beans and tea, although only in trace amounts. Henry Hyde Salter, MD, FRCP, wrote in his report from 1859, that "One of the commonest and best-reputed remedies of asthma, one that is almost sure to have been tried in any case that may come under our observation, and one that in many cases is more efficacious than any other, is strong coffee" [3].…”