大麻こそキーワード

すべてのものに毒性があるという認識は持っておかれた方がいいと思います。
塩だろうが水だろうが、とりすぎれば死にます。
ちなみに、ＴＨＣ TETRAHYDROCANNABINOL
CASRN: 1972-08-3
の動物毒性は以下の通り。
Non-Human Toxicity Values:

LD50 Rat male oral 1270 mg/kg
[Budavari, S. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs,
and Biologicals. Whitehouse Station, NJ: Merck and Co., Inc., 1996.
1573]**PEER REVIEWED**

LD50 Rat female oral 730 mg/kg
[Budavari, S. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs,
and Biologicals. Whitehouse Station, NJ: Merck and Co., Inc., 1996.
1573]**PEER REVIEWED**

LD50 Rat oral 666 mg/kg
[Lewis, R.J. Sax's Dangerous Properties of Industrial Materials. 9th ed.
Volumes 1-3. New York, NY: Van Nostrand Reinhold, 1996. 3105]**PEER
REVIEWED**

LD50 Rat ip 373 mg/kg
[Lewis, R.J. Sax's Dangerous Properties of Industrial Materials. 9th ed.
Volumes 1-3. New York, NY: Van Nostrand Reinhold, 1996. 3105]**PEER
REVIEWED**

LD50 Rat iv 29 mg/kg
[Lewis, R.J. Sax's Dangerous Properties of Industrial Materials. 9th ed.
Volumes 1-3. New York, NY: Van Nostrand Reinhold, 1996. 3105]**PEER
REVIEWED**

LD50 Mouse oral 482 mg/kg
[Lewis, R.J. Sax's Dangerous Properties of Industrial Materials. 9th ed.
Volumes 1-3. New York, NY: Van Nostrand Reinhold, 1996. 3105]**PEER
REVIEWED**

LD50 Mouse ip 168 mg/kg
[Lewis, R.J. Sax's Dangerous Properties of Industrial Materials. 9th ed.
Volumes 1-3. New York, NY: Van Nostrand Reinhold, 1996. 3105]**PEER
REVIEWED**

LD50 Mouse iv 42 mg/kg
[Lewis, R.J. Sax's Dangerous Properties of Industrial Materials. 9th ed.
Volumes 1-3. New York, NY: Van Nostrand Reinhold, 1996. 3105]**PEER
REVIEWED**

LD50 Monkey iv 128 mg/kg
[Lewis, R.J. Sax's Dangerous Properties of Industrial Materials. 9th ed.
Volumes 1-3. New York, NY: Van Nostrand Reinhold, 1996. 3105]**PEER
REVIEWED**
まあ、毒性がやや低いと言うのには異論はないが。
A prospective study of marijuana use and pregnancy suggested that infants whose mothers had
positive urine assays for marijuana exhibited impaired fetal growth (lower birth weight,
decrease in length) when compared with infants of nonusers.
[Ellenhorn, M.J., S. Schonwald, G. Ordog, J. Wasserberger. Ellenhorn's
Medical Toxicology: Diagnosis and Treatment of Human Poisoning. 2nd ed.
Baltimore, MD: Williams and Wilkins, 1997. 394]**PEER REVIEWED**

Clinical manifestations due to marijuana smoking have included long-term impairment of
memory in adolescents, a sixfold increase in the incidence of schizophrenia, cancer of the
mouth, jaw, tongue, and lungs in 19- to 30-year olds, fetotoxicity, and nonlymphoblastic
leukemia in children of marijuana-smoking mothers.
[Ellenhorn, M.J., S. Schonwald, G. Ordog, J. Wasserberger. Ellenhorn's
Medical Toxicology: Diagnosis and Treatment of Human Poisoning. 2nd ed.
Baltimore, MD: Williams and Wilkins, 1997. 395]**PEER REVIEWED**
まあ、たばこと似たようなものではあるようですが。