All these processes divide the raw coal into the following three categories: 1  Clean coal, having ash content approx. 2  Middlings, having ash content approx. 3  Rejects, having ash content approx.
Most people undergoing chemotherapy receive anti-nausea (anti-emetic) medications to prevent nausea and vomiting. These drugs, given alone or in combination, can be taken in pill form or administered through a vein in your arm. Your doctor advises which to use based on the treatment you're receiving. Medications used to prevent nausea and vomiting include: 1  Alprazolam (Niravam, Xanax)  Aprepitant (Emend)
Chlorpromazine and prochlorperazine have been shown to reduce symptoms of nausea and vomiting of pregnancy and of hyperemesis gravidarum.36 Buccal administration of prochlorperazine is associated with less sedation than oral administration.37 Promethazine is commonly used, but is sedating.