http://www.vaxa.com/693.cfm
It's more of an advertisement than reliable information... but they do have a section on tapeworms. They claim that pharmaceuticals exist for killing these suckers.
Specifically,
Tapeworms
Tapeworms (Cestodes) are generally the largest of the parasites. These segmented worms, containing 50,000 eggs within each of its 3,000-4,000 segments, can release up to one million eggs per day! Some tapeworms may live as long as 25 years and can quickly reach upwards to 10 meters/33 feet in length within the gastrointestinal tract. However, their larvae can be found in almost any organ, being capable of infecting other tissues in varying stages of its development. Parasites have survival skills which are beyond the capabilities of our Immune System, and that’s why they can generally live for years within their host.
and
What Can I Do To Get Rid Of Parasites?
Unfortunately, most available pharmaceutical drugs (parasiticides) are specific for only one particular parasitic organism. And most are generally not that effective because drugs target only certain areas of the body’s metabolism, or only certain stages of parasitic development. Parasiticides are generally very toxic, even in the small doses needed, and thus, must be used carefully. Because of the cunning survival strategies of parasites, and the fact that most are motile, they can quickly migrate from the area of your body that is being medicated, to one that is not, thus, making it almost impossible for effective and complete elimination.
Ben
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