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The US Department of Health and Human Services (HHS) wrote in its Oct. 7, 2003 United States Patent #6,630,507 "Cannabinoids as Antioxidants and Neuroprotectants" on the website patft.uspto.gov:
“Cannabinoids have been found to have antioxidant properties… This new found property makes cannabinoids useful in the treatment and prophylaxis of wide variety of oxidation associated diseases, such as ischemic, age-related, inflammatory and autoimmune diseases. The cannabinoids are found to have particular application as neuroprotectants, for example in limiting neurological damage following ischemic insults, such as stroke and trauma, or in the treatment of neurodegenerative diseases, such as Alzheimer’s disease, Parkinson’s disease and HIV dementia. Nonpsychoactive cannabinoids, such as cannabidiol, are particularly advantageous to use because they avoid toxicity that is encountered with psychoactive cannabinoids at high doses…”
Oct. 7, 2003