Hi Dear , As per your query you have problem of excessive saliva . Secretion of excessive saliva is also known as hypersalivation . There can be many reasons responsible for hypersalivation like infection of oral cavity , acid reflux , temporomandibular joint problem , bruxism and condition like Tuberculosis . It is very important to cure the underlying condition . As far as goose berry is concerned there is no know fact about its side effects , But it is known that it should not be taken in certain conditions like pregnancy and breast-feeding , bleeding disorder , liver disease and kidney disease . I would suggest you to consult dentist to find out the exact and to correct it . Hope your concern has been resolved. Get Well Soon. Best Wishes, Dr. Harry Maheshwari