I Have Been Taking St. John's Wort 1.8 G (standard

I have been taking St. John's Wort 1.8 g (standard process) 1 300mg pill 3 x'
s day, for approximately 2 weeks. I want to get back on Wellbutrin now and I am reading that it's important that I get off the St John's Wort first. I cannot find information on how long I need to wait after stopping the St John's Wort before I can start the Wellbutrin. I also don't know if I can just stop taking the St John's Wort cold turkey. I see very conflicting information on the internet. Do you have answers for me? Thank you. JP