Medications altered by grapefruit include highly prescribed cholesterol-lowering statins, some key heart drugs, and certain anti-psychotic and pain medicines. Thatâs because grapefruit contains a chemical that interferes with an enzyme that controls how drugs are absorbed through the intestines, resulting in a potentially toxic dose of medication.
Yttrium is mostly dangerous in the working environment, due to the fact that damps and gasses can be inhaled with air. This can cause lung embolisms, especially during long-term exposure. Yttrium can also cause cancer with humans, as it enlarges the chances of lung cancer when it is inhaled.
Gadolin tested the properties of yttria (yttrium oxide) in detail and found it did not melt even at the highest temperatures of the blowpipe; it also formed a clear colorless glass with borax. (3a) (These were to be typical properties of all the rare earth metal oxides.) Yttrium was the first rare earth element to be discovered. We now know Gadolinâs yttria was impure; in addition to yttrium oxide, it contained eight other rare earth metal oxides. These were discovered separately in later years; these metals were: erbium, terbium, ytterbium, scandium, thulium, holmium dysprosium, and lutetium.