Although the exact dosage of yucca for arthritis is unclear, some sources suggest up to 2 grams of yucca root in capsules per day.⁴ Alternatively, 1/4 ounce (7 grams) of the root can be boiled in a pint (500 ml) of water for 15 minutes. Three to five (750–1250) cups of this tea may be taken each day.⁵