Table 1.

Clinical trials of antioxidant in neurodegenerative diseases.

Antioxidant	Number of Patients	Follow up Period	Dosage	Route	Effects	Disease	Reference
CoQ10	609	60 month	2400 mg/day	Oral	No	Huntington	[119,195]
	40	96 week	300 mg/day	Oral	Y	Parkinson
Selenium	7540	7 year	200 µg/day	Oral	No	Alzheimer	[107,196]
		6 month	1000 µg/day	I.V.	Y	Traumatic brain injury
Zinc	43	12 week	20 mg/day	Oral	Y	Depression with multiple sclerosis	[197]
Vitamin A	50	28 day	30 mg/day	Oral	Y	Alzheimer	[191,198]
	101	6 month	25,000 UI/day	Oral	Y	Multiple sclerosis
Vitamin C	12	6 day	2 g/day	Oral	Y	Hyperoxia	[147,199]
	60	3 month	500 mg/day	Oral	Y	Trauma surgery
Vitamin E	7540	7 year	400 UI/day	Oral	No	Alzheimer	[168,196,200]
	60	3 month	400 UI/day	Oral	Y	Parkinson
	50	12 month	45 UI/day	Oral	Y	Parkinson