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  2. Cannabidiol - Wikipedia

    en.wikipedia.org/wiki/Cannabidiol

    [23] [24] It may be supplied as CBD oil containing only CBD as the active ingredient (excluding THC or terpenes), CBD-dominant hemp extract oil, capsules, dried cannabis, or prescription liquid solution. [4] [20] CBD does not have the same psychoactivity as THC, [25] [26] and can modulate the psychoactive effects of THC on the body if both are ...

  3. CBD - Wikipedia

    en.wikipedia.org/wiki/CBD

    CBD commonly refers to: Cannabidiol, a drug component of cannabis; Central business district, of a city; CBD may also refer to: Biology. Ecology.

  4. Median lethal dose - Wikipedia

    en.wikipedia.org/wiki/Median_lethal_dose

    In toxicology, the median lethal dose, LD 50 (abbreviation for "lethal dose, 50%"), LC 50 (lethal concentration, 50%) or LCt 50 is a toxic unit that measures the lethal dose of a given substance. [1] The value of LD 50 for a substance is the dose required to kill half the members of a tested population after a specified test duration.

  5. History of radiation protection - Wikipedia

    en.wikipedia.org/wiki/History_of_radiation...

    People over the age of 45 should not take iodine tablets because the risk of side effects is higher than the risk of developing thyroid cancer. In Switzerland, as a precautionary measure, tablets have been distributed every five years since 2004 to the population living within 20 km of nuclear power plants (from 2014, 50 km).

  6. Benzalkonium chloride - Wikipedia

    en.wikipedia.org/wiki/Benzalkonium_chloride

    Standard concentrates are manufactured as 50% and 80% w/w solutions, and sold under trade names such as BC50, BC80, BAC50, BAC80, etc. The 50% solution is purely aqueous, while more concentrated solutions require incorporation of rheology modifiers ( alcohols , polyethylene glycols , etc.) to prevent increases in viscosity or gel formation ...

  7. Cyproterone acetate - Wikipedia

    en.wikipedia.org/wiki/Cyproterone_acetate

    Cyproterone acetate (CPA), sold alone under the brand name Androcur or with ethinylestradiol under the brand names Diane or Diane-35 among others, is an antiandrogen and progestin medication used in the treatment of androgen-dependent conditions such as acne, excessive body hair growth, early puberty, and prostate cancer, as a component of feminizing hormone therapy for transgender individuals ...

  8. DDT - Wikipedia

    en.wikipedia.org/wiki/DDT

    By October 1945, DDT was available for public sale in the United States, used both as an agricultural pesticide and as a household insecticide. [9] Although its use was promoted by government and the agricultural industry, US scientists such as FDA pharmacologist Herbert O. Calvery expressed concern over possible hazards associated with DDT as ...

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