Health Canada and health officials in the US are warning consumers not to use PC SPES and SPES, two herbal products manufactured in the US by BotanicLab. These products, designed to promote prostate and immune system health, were tested in the US by the California Department of Health Services and were found to contain active ingredients for the prescription drugs warfarin and alprazolam. These undeclared ingredients that could cause serious health effects if not taken under medical supervision.