Alternative medicine describes practices used in place of conventional medical treatments. Complementary medicine describes alternative medicine used in conjunction with conventional medicine. The term complementary and alternative medicine (CAM) is an umbrella term for both branches. Alternative medicine includes practices that incorporate spiritual, metaphysical, or religious underpinnings; non-European medical traditions, or newly developed approaches to healing. There are almost 500 such systems.

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The National Center for Complementary and Alternative Medicine defines complementary and alternative medicine as "a group of diverse medical and health care systems, practices, and products that are not presently considered to be part of conventional medicine". It also defines integrative medicine as "[combining] mainstream medical therapies and CAM therapies for which there is some high-quality scientific evidence of safety and effectiveness".^[1] Ralph Snyderman and Andrew Weil state "integrative medicine is not synonymous with complementary and alternative medicine (CAM). It has a far larger meaning and mission in that it calls for restoration of the focus of medicine on health and healing and emphasizes the centrality of the patient-physician relationship".^[2]

Proponents of evidence-based medicine regard the distinction between conventional and alternative medicine as moot, preferring "good medicine" (with provable efficacy) and "bad medicine" (without it). "Bad medicine" is any treatment where the efficacy and safety of which has not been verified through peer-reviewed, double blind placebo controlled studies, regarded as the "gold standard" for determining the efficacy of a compound. It is thus possible for a method to change categories in either direction, based on increased knowledge of its effectiveness or lack thereof.

For example, Phil Fontanarosa and George Lundberg state "There is no alternative medicine. There is only scientifically proven, evidence-based medicine supported by solid data or unproven medicine, for which scientific evidence is lacking. Whether a therapeutic practice is "Eastern" or "Western," is unconventional or mainstream, or involves mind-body techniques or molecular genetics is largely irrelevant except for historical purposes and cultural interest."^[3] Likewise, M Angell and JP Kassirer state "There cannot be two kinds of medicine - conventional and alternative. There is only medicine that has been adequately tested and medicine that has not, medicine that works and medicine that may or may not work. Once a treatment has been tested rigorously, it no longer matters whether it was considered alternative at the outset. If it is found to be reasonably safe and effective, it will be accepted."^[4]

On the other hand, Edzard Ernst is a proponent of evidence-based medicine, but retains the distinction between conventional ("orthodox") and complementary medicine. He states "Complementary medicine is diagnosis, treatment and/or prevention which complements mainstream medicine by contributing to a common whole, by satisfying a demand not met by orthodoxy or by diversifying the conceptual frameworks of medicine."^[5]

Regulation

Jurisdiction differs concerning which branches of alternative medicine are legal, which are regulated, and which (if any) are provided by a government-controlled health service or reimbursed by a private health medical insurance company.

A number of alternative medicine advocates disagree with the restrictions of government agencies that approve medical treatments (such as the American Food and Drug Administration) and the agencies' adherence to experimental evaluation methods. They claim that this impedes those seeking to bring useful and effective treatments and approaches to the public, and protest that their contributions and discoveries are unfairly dismissed, overlooked or suppressed. Alternative medicine providers often argue that health fraud should be dealt with appropriately when it occurs.

In India, which is the home of several alternative systems of medicines, Ayurveda, Siddha, Unani, and Homeopathy are licenced by the government. Naturopathy will also be licensed soon because several Universities now offer bachelors degrees in it. Other activities connected with AM/CM, such as Panchakarma and massage therapy related to Ayurveda are also licenced by the government now.

Contemporary use of alternative medicine

Edzard Ernst wrote in the Medical Journal of Australia that "about half the general population in developed countries use complementary and alternative medicine (CAM)" (Ernst 2003). A survey (Barnes et al 2004) released in May 2004 by the National Center for Complementary and Alternative Medicine, part of the National Institutes of Health in the United States, found that in 2002, 36% of Americans used some form of alternative therapy in the past 12 months — a category that included yoga, meditation, herbal treatments and the Atkins diet. If prayer was counted as an alternative therapy, the figure rose to 62.1%. Another study by Astin et al (1998) suggests a similar figure of 40%. A British telephone survey by the BBC of 1209 adults in 1998 shows that around 20% of adults in Britain had used alternative medicine in the past 12 months (Ernst & White 1999)

The use of alternative medicine appears to be increasing. Eisenburg et al carried out a study in 1998 which showed that use of alternative medicine had risen from 33.8% in 1990 to 42.1% in 1997. In the United Kingdom, a 2000 report ordered by the House of Lords suggested that "limited data seem to support the idea that CAM use in the United Kingdom is high and is increasing"[2].

Medical education

Increasing numbers of medical colleges have begun offering courses in alternative medicine. For example, the University of Arizona College of Medicine offers a program in Integrative Medicine under the leadership of Dr. Andrew Weil which trains physicians in various branches of alternative medicine which "neither rejects conventional medicine, nor embraces alternative practices uncritically." [3] In three separate research surveys that surveyed the 125 medical schools offering an MD degree, the 19 medical schools offering a DO degree, and 585 schools of nursing in the United States: 60 percent of U.S. medical schools offering an MD degree teach CAM, 95% of Osteopathic medical school teach CAM, and 84.8% of US schools of nursing teach CAM. (Wetzel et al 1998, Saxon et al 2004, Fenton & Morris 2003)

In the UK, no medical schools offer courses that teach the clinical practice of alternative medicine. However, alternative medicine is taught in several schools as part of the curriculum. Teaching is based mostly on theory and understanding alternative medicine, with emphasis on being able to communicate with alternative medicine specialists. To obtain competence in practicing clinical alternative medicine, qualifications must be obtained from individual medical societies. The student must have graduated and be a qualified doctor. The British Medical Acupuncture Society, which offers medical acupuncture certificates to doctors, is one such example, as is the College of Naturopathic Medicine UK and Ireland.

Public popularity

The NCCAM surveyed the American public on complementary and alternative medicine use in 2002. According to the survey^[6]:

• 36 percent of U.S. adults age 18 years and over use some form of complementary and alternative medicine (CAM).
• When prayer specifically for health reasons is included in the definition of CAM, the number of adults using some form of CAM in 2002 rose to 62 percent.
• The majority of individuals (54.9%) used CAM in conjunction with conventional medicine.
• Most people use CAM to treat and/or prevent musculoskeletal conditions or other conditions associated with chronic or recurring pain.
• "The fact that only 14.8% of adults sought care from a licensed or certified CAM practitioner suggests that most individuals who use CAM" prefer to treat themselves."
• "Women were more likely than men to use CAM. The largest sex differential is seen in the use of mind-body therapies including prayer specifically for health reasons".
• "Except for the groups of therapies that included prayer specifically for health reasons, use of CAM increased as education levels increased".
• The most common CAM therapies used in the USA in 2002 were prayer (45.2%), herbalism (18.9%), breathing meditation (11.6%), meditation (7.6%), chiropractic medicine (7.5%), yoga (5.1%), body work (5.0%), diet-based therapy (3.5%), progressive relaxation (3.0%), mega-vitamin therapy (2.8%) and Visualization (2.1%)

Support for alternative medicine

Advocates of alternative medicine hold that alternative therapies often provide the public with services not available from conventional medicine. This argument covers a range of areas, such as patient empowerment, alternative methods of pain management, treatment methods that support the biopsychosocial model of health, stress reduction services, other preventive health services that are not typically a part of conventional medicine, and of course complementary medicine's palliative care which is practiced by such world renowned cancer centers such as Memorial Sloan-Kettering (see Vickers 2004).

Efficacy

Advocates of alternative medicine hold that the various alternative treatment methods are effective in treating a wide range of major and minor medical conditions, and contend that recently published research (such as Michalsen 2003, Gonsalkorale 2003, and Berga 2003) proves the effectiveness of specific alternative treatments. They assert that a PubMed search revealed over 370,000 research papers classified as alternative medicine published in Medline-recognized journals since 1966 in the National Library of Medicine database (such as Kleijnen 1991, Linde 1997, Michalsen 2003, Gonsalkorale 2003, and Berga 2003).

Advocates of alternative medicine hold that alternative medicine may provide health benefits through patient empowerment, by offering more choices to the public, including treatments that are simply not available in conventional medicine:

"Most Americans who consult alternative providers would probably jump at the chance to consult a physician who is well trained in scientifically based medicine and who is also open-minded and knowledgeable about the body's innate mechanisms of healing, the role of lifestyle factors in influencing health, and the appropriate uses of dietary supplements, herbs, and other forms of treatment, from osteopathic manipulation to Chinese and Ayurvedic medicine. In other words, they want competent help in navigating the confusing maze of therapeutic options that are available today, especially in those cases in which conventional approaches are relatively ineffective or harmful." (Snyderman, Weil 2002)

Although advocates of alternative medicine acknowledge that the placebo effect may play a role in the benefits that some receive from alternative therapies, they point out that this does not diminish their validity. Researchers who judge treatments using the scientific method are concerned by this viewpoint, since, according to standard controlled studies, it is an acknowledgement of the inefficacy of alternative treatments.

Danger reduced when used as a complement to conventional medicine

A major objection to alternative medicine is that it may be done in place of conventional medical treatments. As long as alternative treatments are used alongside standard conventional medical treatments, most medical doctors find most forms of complementary medicine acceptable (Vickers 2004). Consistent with previous studies, the CDC recently reported that the majority of individuals in the United States (i.e., 54.9%) used CAM in conjunction with conventional medicine. (CDC Advance Data Report #343, 2002)

Patients should however always inform their medical doctor they are using alternative medicine. Some patients do not tell their medical doctors since they fear it will hurt their patient-doctor relationship. However some alternative treatments may interact with orthodox medical treatments.

The issue of alternative medicine interfering with conventional medical practices is minimized when it is only turned to after the conventional medicine path has been exhausted. Many patients believe alternative medicine can help in coping with chronic illnesses for which conventional medicine offers no cure and only management. It is becoming more common for a patient's own MD to suggest alternatives when they cannot offer a treatment.

Criticism of alternative medicine

Due to the wide range of therapies that are considered to be "alternative medicine" few criticisms apply across the board. For more information about a particular therapy or branch of alternative medicine, including specific criticism, please refer to the following link: List of branches of alternative medicine.

Criticisms directed at specific branches of alternative medicine range from the fairly minor (conventional treament is believed to be more effective in a particular area) to incompatibility with the known laws of physics (for example, in homeopathy).

Critics argue that alternative medicine practitioners may not have an accredited medical degree or be licensed physicians or general practitioners. This cannot always be considered a serious criticism, because unless a new system of medicine becomes established, it does not receive accreditation of any kind, except by its own professional organizations. This is the route homeopathy, ayurveda, siddha, unani, and naturopathy had to follow in those countries where it is now offered by accredited institutions.

Proponents of the various forms of alternative medicine reject criticism as being founded in prejudice, financial self-interest, or ignorance. Refutations of criticism sometimes take the form of an appeal to nature.

Efficacy

Lack of proper testing

Although proponents of alternative medicine often cite the large number of studies which have been performed, critics point out the fact that there are no statistics on exactly how many of these studies were controlled, double-blind peer-reviewed experiments or how many produced results supporting alternative medicine or parts thereof. They contend that many forms of alternative medicine are rejected by conventional medicine because the efficacy of the treatments has not been demonstrated through double-blind randomized controlled trials. Some skeptics of alternative practices point out that a person may attribute symptomatic relief to an otherwise ineffective therapy due to the natural recovery from or the cyclical nature of an illness (the regression fallacy), the placebo effect, or the possibility that the person never originally had a true illness [4].

Problems with known tests and studies

Critics contend that observer bias and poor study design invalidate the results of many studies carried out by alternative medicine promoters.

A review of the effectiveness of certain alternative medicine techniques for cancer treatment (Vickers 2004), while finding that most of these treatments are not merely "unproven" but are proven not to work, notes that several studies have found evidence that the psychosocial treatment of patients by psychologists is linked to survival advantages (although it comments that these results are not consistently replicated). The same review, while specifically noting that "complementary therapies for cancer-related symptoms were not part of this review", cites studies indicating that several complementary therapies can provide benefits by, for example, reducing pain and improving the mood of patients.

Some argue that less research is carried out on alternative medicine because many alternative medicine techniques cannot be patented, and hence there is little financial incentive to study them. Drug research, by contrast, can be very lucrative, which has resulted in funding of trials by pharmaceutical companies. Many people, including conventional and alternative medical practitioners, contend that this funding has led to corruption of the scientific process for approval of drug usage, and that ghostwritten work has appeared in major peer-reviewed medical journals. (Flanagin et al. 1998, Larkin 1999). Increasing the funding for research of alternative medicine techniques was the purpose of the National Center for Complementary and Alternative Medicine. NCCAM and its predecessor, the Office of Alternative Medicine, have spent more than $200 million on such research since 1991. The German Federal Institute for Drugs and Medical Devices Commission E has studied many herbal remedies for efficacy. [5]

Safety

Critics contend that "dubious therapies can cause death, serious injury, unnecessary suffering, and disfigurement" [6] and that some people have been hurt or killed directly from the various practices or indirectly by failed diagnoses or the subsequent avoidance of conventional medicine which they believe is truly efficacious [7].

Alternative medicine critics agree with its proponents that people should be free to choose whatever method of healthcare they want, but stipulate that people must be informed as to the safety and efficacy of whatever method they choose. People who choose alternative medicine may think they are choosing a safe, effective medicine, while they may only be getting quack remedies. Grapefruit seed extract is an example of quackery when multiple studies demonstrate its universal antimicrobial effect is due to synthetic antimicrobial contamination.^{[7][8][9][10][11]}

Delay in seeking conventional medical treatment

They state that those who have had success with one alternative therapy for a minor ailment may be convinced of its efficacy and persuaded to extrapolate that success to some other alternative therapy for a more serious, possibly life-threatening illness. For this reason, they contend that therapies that rely on the placebo effect to define success are very dangerous.

Danger can be increased when used as a complement to conventional medicine

A Norwegian multicentre study examined the association between the use of alternative medicines (AM) and cancer survival. 515 patients using standard medical care for cancer were followed for eight years. 22% of those patients used AM concurrently with their standard care.

The study revealed that death rates were 30% higher in AM users than in those who did not use AM: "The use of AM seems to predict a shorter survival from cancer." ^[12]

Associate Professor Alastair MacLennan of the Department of Obstetrics and Gynaecology in Adelaide University, Australia reports that ^{[citation needed]} a patient of his almost bled to death on the operating table. She had failed to mention she had been taking "natural" potions to "build up her strength" for the operation - one of them turned out to be a powerful anticoagulant which nearly caused her death.

Danger from undesired side-effects

Conventional treatments are thoroughly checked for undesired side-effects, whereas alternative treatments are normally not.^{[verification needed]} Any alternative treatment that has a biological or psychological impact may also have potentially dangerous biological or psychological side-effects. Attempts to refute this sometimes use the appeal to nature fallacy, i.e. "that what is natural cannot be harmful".

Danger related to self-medication

Similar problems as those related to self-medication also apply to parts of alternative medicine. For example, an alternative medicine may instantly make problems better, but actually worsen problems in the long run. The result may be addiction^{[citation needed]} and deteriorating health.

Issues of regulation

Critics contend that some branches of alternative medicine are often not properly regulated in some countries to identify who practices or know what training or expertise they may possess. Critics argue that the governmental regulation of any particular alternative therapy does necessitate that the therapy is effective.

Evidence-based medicine

Evidence-based medicine (EBM) applies the scientific method to medical practice, and aims for the ideal that healthcare professionals should make "conscientious, explicit, and judicious use of current best evidence" in their everyday practice.

Prof. Edzard Ernst is a notable proponent of applying EBM to CAM.

Integrative medicine

Integrative medicine is a branch of alternative medicine which limits itself to methods with strong scientific evidence of efficacy and safety. The main proponent of integrative medicine is Andrew T. Weil M.D., who founded the Program in Integrative Medicine at the University of Arizona in 1994 based on a phrase coined by Elson Haas, MD.

Responsible alternative health product providers who have had medical studies conducted on their products often publish these studies online. Even so, it is wise to ask for a list of the ingredients used in the products you are considering purchasing.

Notes

References

1. Astin JA "Why patients use alternative medicine: results of a national study" JAMA 1998; 279(19): 1548-1553
2. Barnes P, Powell-Griner E, McFann K, Nahin R. "Complementary and Alternative Medicine Use Among Adults: United States, 2002." Advanced data from vital health and statistics 2004; Hyattsville, Maryland:NCHS Online
3. Benedetti F, Maggi G, Lopiano L. "Open Versus Hidden Medical Treatments: The Patient's Knowledge About a Therapy Affects the Therapy Outcome." Prevention & Treatment, 2003; 6(1), APA online
4. Berga SL, Marcus MD, Loucks TL. "Recovery of ovarian activity in women with functional hypothalamic amenorrhea who were treated with cognitive behavior therapy." Fertility and Sterility 2003; 80(4): 976-981 Abstract
5. Downing AM, Hunter DG. "Validating clinical reasoning: a question of perspective, but whose perspective?" Man Ther, 2003; 8(2): 117-9. PMID 12890440 Manual Therapy Online
6. Eisenberg DM. "Advising patients who seek alternative medical therapies." Ann Intern Med 1997; 127:61-69. PMID 9214254
7. Eisenberg, DM, Davis RB, Ettner SL "Trends in alternative medicine use in the United States 1990-1997." JAMA, 1998; 280:1569-1575. PMID 9820257
8. Ernst E. "Obstacles to research in complementary and alternative medicine." Medical Journal of Australia, 2003; 179'(6): 279-80. PMID 12964907 http://www.mja.com.au/public/issues/179_06_150903/ern10442_fm-1.html MJA online]
9. Fenton MV, Morris DL. "The integration of holistic nursing practices and complementary and alternative modalities into curricula of schools of nursing." Altern Ther Health Med, 2003; 9(4):62-7. PMID 12868254
10. Flanagin A, Carey LA, Fontanarosa PB. "Prevalence of articles with honorary authors and ghost authors in peer-reviewed medical journals." JAMA, 1998; 280(3):222-4. Full text
11. Gonsalkorale WM, Miller V, Afzal A, Whorwell PJ. "Long term benefits of hypnotherapy for irritable bowel syndrome." Gut, 2003; 52(11):1623-9. PMID 14570733
12. Gunn IP. "A critique of Michael L. Millenson's book, Demanding medical excellence: doctors and accountability in the information age, and its relevance to CRNAs and nursing." AANA J, 1998 66(6):575-82. Review. PMID 10488264
13. Kleijnen J, Knipschild P, ter Riet G. "Clinical trials of homoeopathy." BMJ, 1991; 302:316-23. Erratum in: BMJ, 1991;302:818. PMID 1825800
14. Larkin M. "Whose article is it anyway?" Lancet, 1999; 354:136. Editorial
15. Linde K, Clausius N, Ramirez G. "Are the clinical effects of homeopathy placebo effects? A meta-analysis of placebo-controlled trials." Lancet, 1997; 350: 834-43. Erratum in: Lancet 1998 Jan 17;351(9097):220. PMID 9310601
16. Michalsen A, Ludtke R, Buhring M. "Thermal hydrotherapy improves quality of life and hemodynamic function in patients with chronic heart failure." Am Heart J, 2003; 146(4):E11. PMID 14564334
17. Saxon DW, Tunnicliff G, Brokaw JJ, Raess BU. "Status of complementary and alternative medicine in the osteopathic medical school curriculum." J Am Osteopath Assoc 2004; 104(3):121-6. PMID 15083987
18. Snyderman R, Weil AT. "Integrative medicine: bringing medicine back to its roots." Arch Intern Med 2002; 162:395–397.
19. Tonelli MR. "The limits of evidence-based medicine." Respir Care, 2001; 46(12): 1435-40; discussion 1440-1. Review. PMID 11728302 PMID: 11863470
20. Vickers A. "Alternative Cancer Cures: "Unproven" or "Disproven"?" CA Cancer J Clin 2004; 54: 110-118. Online
21. Wetzel MS, Eisenberg DM, Kaptchuk TJ. "Courses involving complementary and alternative medicine at US medical schools." JAMA 1998; 280(9):784 -787. PMID 9729989
22. Zalewski Z. "Importance of Philosophy of Science to the History of Medical Thinking." CMJ 1999; 40: 8-13. CMJ online

Further reading

Dictionary definitions

• Complementary medicine

World Health Organization publication

• WHO Global Atlas of Traditional, Complementary and Alternative Medicine

Journals dedicated to alternative medicine research

• Alternative therapies in health and medicine. Aliso Viejo, CA : InnoVision Communications, c1995- NLM ID: 9502013
• Alternative medicine review : a journal of clinical therapeutic. Sandpoint, Idaho : Thorne Research, Inc., c1996- NLM ID: 9705340
• BMC complementary and alternative medicine. London : BioMed Central, 2001- NLM ID: 101088661
• Complementary therapies in medicine. Edinburgh ; New York : Churchill Livingstone, c1993- NLM ID: 9308777
• Evidence based complementary and alternative medicine
• Evidence Based journal of Integrative medicine
• Journal of Integrative medicine.
• The journal of alternative and complementary medicine : research on paradigm, practice, and policy. New York, NY : Mary Ann Liebert, Inc., c1995- NLM ID: 9508124
• Journal of alternative & complementary medicine. London : Argus Health Publications, c1989- NLM ID: 9883124
• Journal for Alternative and Complementary Medicine
• Scientific Review of Alternative Medicine (SRAM)

Other works that discuss alternative medicine

• Ninivaggi, F. J., An Elementary Textbook of Ayurveda: Medicine with a Six Thousand Year Old Tradition, International Universities/Psychosocial Press, Madison, CT, 2001.
• Diamond, J. Snake Oil and Other Preoccupations, 2001, ISBN 0-09-942833-4 , foreword by Richard Dawkins reprinted in Dawkins, R., A Devil's Chaplain, 2003, ISBN 0-7538-1750-0 .
• Rosenfeld, Anna, Where Do Americans Go for Healthcare?", Case Western Reserve University, Cleveland, Ohio, USA.
• Planer, Felix E. 1988 Superstition, Revised ed. Buffalo, New York: Prometheus Books
• Hand, Wayland D. 1980 "Folk Magical Medicine and Symbolism in the West", in Magical Medicine, Berkeley: University of California Press, pp. 305-319.
• Phillips Stevens Jr. Nov./Dec. 2001 "Magical Thinking in Complementary and Alternative Medicine", Skeptical Inquirer Magazine, Nov.Dec 2001
• Illich, Ivan. Limits to Medicine. Medical Nemesis: The expropriation of Health. Penguin Books, 1976.
• Dillard, James and Terra Ziporyn. Alternative Medicine for Dummies. Foster City, CA: IDG Books Worldwide, Inc., 1998.
• Pert, Candace B., Molecules of Emotion: Why You Feel the Way You Feel, Scribners, 1997, ISBN 0-684-84634-9
• Trudeau, Kevin, More Natural "Cures" Revealed, Alliance Publishing Group, 2006, ISBN 0-9755995-4-2.
• Wisneski, Leonard A. and Lucy Anderson, The Scientific Basis of Integrative Medicine, CRC Press, 2005. ISBN 0-8493-2081-X.

External links

• Pine Street Foundation - Center for integrative approaches to cancer research
• The National Center for Complementary and Alternative Medicine - US National Institutes of Health
• Complementary and Alternative Medicine on PubMed - Alternative Medicine Research Database
• Web pages for new BBC/Open University television series "Alternative Medicine" that examines the evidence scientifically.
• The British Library - finding information on the complementary medicines industry
• Alternative medicine news

Criticism

• A Different Way to Heal? - Scientific American Frontiers Web
• What is Complementary and Alternative Medicine? - By Steven Novella MD
• Skepdic Article on Alternative Medicine
• NCAHF Resource Documents - Includes a list of alternative medicine modalities with links to articles relating to them
• Index of Questionable Treatments - Includes a list of alternative medicine modalities and links to articles relating to them
• Who Gets to Validate Alternative Medicine - PBS article