fluke. an organism of the class trematoda, characterized by a body that is usually flat and often leaflike; flukes can infect the blood, liver, intestines, and lungs.Called also trematode. Flukes are not common in the United States but are a serious problem in many Asian, tropical, and subtropical countries.nother liver fluke, Fasciola hepatica, is occasionally found in humans; it causes obstruction of the bile ducts and enlargement of the liver. Blood flukes such as Schistosoma penetrate the skin, make their way to the blood and travel to various parts of the body (see also schistosomiasis).
How Medication-Assisted Treatment Can Help Opioid Addiction. When people become dependent on opioids, they feel sick when there are no opioids in the body. This sickness is known as withdrawal. Along with intense cravings, withdrawal is a hallmark of opioid addiction, and the two combined can make recovery especially difficult. By helping to reduce cravings and withdrawal, medication-assisted treatment can help a person stop thinking constantly about the problem drug.
1 - Many of the most addictive opiates are often opioid agonist drugs. 2  They can cause harmful physical and mental effects. 3  Understanding the Use of an Opioid Agonist-Find out about the various ways that opioid agonists are useful in the treatment of substance abuse.pioid agonists interact with the brainâs opiate receptors. Opioid addiction causes an overwhelming compulsion to use the drug and increased tolerance levels have left people destitute, homeless, or shattered financially and in their relationships with others.