LD50s for isocyanates are typically several hundred milligrams per kilogram. Medicine dosage guidelines are specified in terms of milligrams per kilogram. The maximum recommended daily dose is 10 milligrams per day. Recommended intakes, expressed as milligrams per kilogram of body weight per day, have been established. The international standard sets the maximum histamine level at 200 milligrams per kilogram. Recommendations are in milligrams per day (mg/d). There are cases where doses as low as 57 milligrams per kilogram have been fatal. Hence, 1 momme = 3.75 grams or 3750 milligrams. Sodium's estimated oceanic abundance is 1.08 milligrams per liter. Soft drinks typically contain 0 to 55 milligrams of caffeine per 12 ounce serving. Its biological half-life time is 10 hours at doses of 80-120 milligrams. Humans typically consume 1 to 20 milligrams of bromine per day. There are 0.5 milligrams of fluorine per liter of human blood. One carat is defined as 200 milligrams (about 0.007 ounces avoirdupois). On average, humans consume 0.3 milligrams of tin per day.