When taken by mouth: Reishi mushroom extract is quite possibly Protected when useful for up to at least one yr. Powdered total reishi mushroom is quite possibly Safe and sound when employed for approximately 16 weeks. Reishi mushroom can result in dizziness, dry mouth, itching, nausea, abdomen upset, and rash. https://stephenqiwit.blogoscience.com/38522955/getting-my-chaga-mushroom-to-work