Mebendazole or Fenbendazole

Mebendazole, a prescription drug used in humans to treat parasites, and fenbendazole, a treatment for parasites in animals, show promising but so far very preliminary evidence of anticancer effects.

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Green Tea or EGCG

Green tea and its extracts may provide substantial benefit for body terrain factors, especially body weight, high blood sugar and insulin resistance, inflammation, oxidative stress, each of which is linked to cancer development and growth.

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Cimetidine and Other H2 Blockers

H2 blockers, used to treat gastrointestinal ulcers and/or reduce stomach acid, may improve survival among people with cancer, especially after colorectal cancer resection.

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Berberine

Berberine, an active ingredient in several plants, shows good effects in managing high blood sugar and excess body weight, plus lower risk of colorectal cancer.

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Aspirin

Aspirin is a widely available over-the-counter medication that shows substantial effects at promoting survival and reducing risk of many types of cancer, plus reducing inflammation and managing pain due to inflammation.

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Artesunate and Artemisinin-based Drugs

Prescription drugs derived from the Artemisia annua plant show very limited benefit in improving cancer treatment outcomes.

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