Marijuana is not allowed pre transplant. They test for it and other drugs pre transplant. I was tested once a month while I waited for a liver. The doctors especially don’t want you smoking it. Post transplant my transplant doctors said I could do gummies that were 50/50 cbd and thc. I was severely under weight and needed something to help me eat. I took 1/2 a gummie at night. It did help. I did that for a month and my appetite came back. Always ask your doctors before you do anything. Certain types of drugs can get you kicked off the transplant list. Marajuana May vary depending on the state and doctors, but I didn’t want to risk anything, so I left it alone, no booze whatsoever, no marajuana, etc.