For the most common type of cardiac tumor, hemangiosarcoma (HAS), spayed females had a greater than five times risk vs. their intact counterparts. Neutered male dogs had a slightly higher risk than intact males. The study concluded that, â¦ neutering appeared to increase the risk of cardiac tumor in both sexes.
Opiates List Categories. The natural drugs contained on the opiates list come from the alkaloid materials found in the opium poppy seed plant. Opium poppy seed plants contain a high concentration of morphine-derived alkaloids, which accounts for why morphine is one of the strongest opiates in existence. Codeine-derived alkaloids make up the second highest concentration.
In 1803, Friedrich Sertuerner of Germany synthesized morphine (principium somniferum) for the first time, and discovered the active ingredient of the opium poppy, which Linnaeus had first classified in 1753 as papaver somniferum. The discovery of morphine was considered a milestone.