Caar_Calcarea Arsenicosa is a homeopathic medicine that is derived from calcium carbonate and arsenic. It is primarily used to treat respiratory disorders such as asthma, bronchitis, and pneumonia. This medicine is also effective in treating anxiety, restlessness, and sleep disorders. It is safe and non-toxic, making it a popular choice for those seeking alternative treatments for their health concerns. Caar_Calcarea Arsenicosa is available in various potencies and can be purchased online or from a licensed homeopathic practitioner.