L-carnitine supplementation for the management of fatigue in patients with hypothyroidism on levothyroxine treatment: a randomized, double-blind, placebo-controlled trial.
Effects of carnitine on thyroid hormone action.
The combination of L-theanine and caffeine improves cognitive performance and increases subjective alertness.
Ginseng in the treatment of fatigue in multiple sclerosis: a randomized, placebo-controlled, double-blind pilot study.
A randomised, double-blind, placebo-controlled, parallel-group study of the standardised extract shr-5 of the roots of Rhodiola rosea in the treatment of subjects with stress-related fatigue.
Effects of acetyl-L-carnitine in diabetic neuropathy and other geriatric disorders.