To help treat arthritis in his hands, Patrick Stewart has revealed that he uses spray, ointment and edibles every day

Helping with the pain:

Stewart, 76, praised the U.K.’s first initiative to explore the benefits of marijuana in research led by Oxford University when opening up about his use of cannabis.

In a statement obtained by PEOPLE, he said: “I have had no negative side effects from this treatment.” He added that using marijuana has “significantly reduced the stiffness and pain” in his hands.

Two years ago, a Los Angeles doctor gave Stewart legal permission to purchase cannabis-based products from a “registered outlet” to help with his condition.

The actor said that he uses the ointment each night to help with the pain in his hands so he can sleep better noting that it’s “too greasy” to use during the day. He continued saying: ““The spray, however, was much more usable and I would spray my fingers and particularly my thumb joints several times a day.”

The acclaimed actor said that taking one-eighth of a cannabis-laced Chewy bar is “helpful at night time.” He added that the arthritis is likely a “genetically based condition,” in the statement he said that his mother had badly distorted and painful hands.

Medicinal marijuana endorsements:

Stewart added that as a result of his own experience with the substance, he “enthusiastically” supports Oxford University’s research into marijuana-based treatments, saying: “I believe this program of research might result in benefits for people like myself as well as millions of others.”

Medicinal marijuana has been publicly endorsed by other stars beside Stewart

In a Twitter post in 2015, Chelsea Handler rejoiced about receiving her very own medical marijuana card, writing “I’m a legal marijuaner,” and posted a photo of her new ID — which features her sporting a wide smile.