Testicular toxicity assessment of Andrographis paniculata dried extract in rats.

Prevention of common colds with Andrographis Paniculata dried extract: a pilot, double-blind trial.

What it is: The dried extract of the leaf of the artichoke plant (also known as Cynara scolymus).

Briefly, aliquots of the dried extracts were treated with 0.03 N NaOH in methanol for two hours at room temperature.

Turner reported the effectiveness of iodide and dried extracts of thyroid in prevention of atherosclerosis in laboratory rabbits.

Wolbling RH, Leonhardt K. Local therapy of herpes simplex with dried extract from Melissa officinalis.

Many of these aqueous, ethanolic, distilled, condensed or dried extracts do indeed have a real and beneficial effect, and a study of ethnobotany can give clues as to which plants might be worth studying in more detail.