You should take him to a de-addiction centre for discontinuing this habit and then try to get scaling done for him.

The main cause of bleeding gums is the buildup of plaque at the gum line. This will lead to a condition called gingivitis, or inflamed gums. Plaque that is not removed will harden into tartar. This will lead to increased bleeding and a more advanced form of gum and jawbone disease known as periodontitis. Other causes of bleeding gums include: Any bleeding disorder Brushing too hard Hormonal changes during pregnancy Ill-fitting dentures or other dental appliances Improper flossing Infection, which can be either in a tooth or the gum Leukemia, a type of blood cancer Scurvy, a vitamin C deficiency Use of blood thinners Vitamin K deficiency

Hello there.  I can understand your concern.  What kind of drugs does he take? If you love your brother so much, why not take him to a de-addiction centre? Consult a psychiatrist in person for further evaluation and management. Best regards. Dr. Anil kumar jain. Bangalore.