The usage of cannabis and mushrooms as can be easily guessed produces a complementary and additive effect. The synergy shown between the cannabis and mushrooms gives an increase in the intensity of the high and characteristic effects of both substances. In order to get the best results from the mixing of cannabis and mushrooms, they have to be done the right way. The dosage of both substances to be used in the mixing are very important. Knowledge of the appropriate dosage to be used keeps the user from the adverse effects of both substances as well as those that may arise from the synergy of the two substances.