Methylxanthine theobromine theophylline for corona treatment

Methylxanthine ,theobromine, theophylline are compounds present in tea . However there is no evidence that tea can cure or prevent COVID -19 infection . It is a fact that methylxanthines, theophyllines are used in treatment of airway obstruction caused by health conditions such as asthma, chronic bronchitis. But the amount of these compounds present in tea is minimal and not of therapeutically effective levels . This cannot be linked in any way to tea being used to cure COVID -19 infection.