«On the one hand, United States federal government officials have consistently denied that marijuana has any medical benefits. On the other, the government actually holds patents for the medical use of the plant.
Just check out US Patent 6630507 titled “Cannabinoids as antioxidants and neuroprotectants” which is assigned to The United States of America, as represented by the Department of Health and Human Services.
The patent claims that “Cannabinoids have been found to have antioxidant properties, unrelated to NMDA receptor antagonism. 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.”
The patent was obtained in October of 2003.»