Complementary medicine is used in addition to conventional medicine, not as a replacement.
Alternative medicine is often used instead of conventional medical techniques.
Integrative medicine combines treatments from conventional medicine and complementary and alternative medicine for which there is evidence of safety and effectiveness.
Evidence-based, peer-reviewed resource on complementary and alternative medicine, with monographs, flashcards and references; also features interaction checkers, continuing education, and news briefs. Mobile friendly. App available.
NCCIH, a free resource from the National Institutes of Health, works to define, through rigorous scientific investigation, the usefulness and safety of complementary and integrative health interventions and their roles in improving health and health care. Mobile friendly.
Presents today's available information on cannabis and its uses in all areas of patient care. Summarizes what is currently known about the positive and negative health impacts of cannabis, including detailed pharmacological profiles of THC and CBD, and applicability to multiple specialties.
Medical Marijuana: A Clinical Handbook by 
Textbook of Natural Medicine by 