And even if FDA considered kratom to be safe as a botanical, marketers of kratom would be precluded by the Federal Food, Drug & Cosmetic Act (FD&C) from making claims that such products are intended to treat diseases. Such disease claims render a product an unapproved drug, Ullman said.
Indeed, the most common cause for coughing up blood is the least seriousâa ruptured small blood vessel caused by coughing and/or a bronchial infection. In patients with a history of smoking and those who are otherwise at risk for lung disease, however, hemoptysis is often a sign of serious illness.
Causes for coughing blood include: 1  Bronchitis (acute or chronic), the most common cause of coughing up blood. 2  Hemoptysis due to bronchitis is rarely life-threatening.