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.
Morphine is the principle alkaloid in opium (derived from poppy  plants). It is the active substance released by the metabolism of  heroin (morphine diacetate) in the human â¦body.    Morphine is an opiate - narcotic pain reliever used to treat  moderate to severe pain. It can easily become an addictive drug and  is regulated in the US as a Schedule II prescription medication.