Mercurius Cyanatus is made from the compound cyanide of Mercury. It is used in acute conditions especially respiratory troubles and conditions of the mouth. Head Great excitement, fits of passion; fury; talkativeness. Eyes sunken; face pale. Mouth Covered with ulcerations Tongue pale Free salivation Fetor of breath Pain and swelling of salivary glands Ulcerations of mouth have a gray membrane. Throat Feels raw and sore Mucous membranes broken down, ulcerated Looks raw in spots, especially in public speakers. Hoarseness, and talking is painful. Necrotic destruction of soft parts of palate and fauces. Intense redness of fauces Swallowing very difficult. Dark blood from nose Diphtheria of the larynx and nose Stomach Nausea, vomiting, bilious, bloody; hiccough Abdomen painful, tender to pressure. Rectum Intolerable pain Redness around anus Frequent hæmorrhage; stools with tenesmus Discharge of fetid liquid with gangrenous odor Black stools Urinary Amber color, painful, albuminous, scanty Nephritis with great debility and chilliness Suppression of urine. Skin Moisture, with icy coldness Dose: As prescribed by physician. Can be taken along with allopathic medicines. Side Effects: None Precautions Maintain half an hour gap between food/drink/any other medicines and homeopathic medicine. Avoid any strong smell in the mouth while taking medicine e.g. camphor, garlic, onion, coffee, hing. Use under medical supervision.