Natural Medicines Comprehensive Database rates effectiveness based on scientific evidence according to the following scale:
- Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, Ineffective, and Insufficient Evidence to Rate.
The effectiveness ratings for SAMe are as follows:
Likely effective for…
- Taking SAMe by mouth or by injection seems to reduce symptoms of depression. Several studies have shown that SAMe can be beneficial and might be as effective as some prescription medications used for depression (tricyclic antidepressants). Some research also shows that taking SAMe might be helpful for people who do not have a good response to a prescription antidepressant. However, SAMe should not be taken in combination with a prescription antidepressant without the monitoring of a health professional.
- Taking SAMe by mouth seems to work about as well as aspirin and similar medications, but it can take twice as long to start working. Most people with arthritis need to take SAMe for about a month before they feel better.
Possibly effective for…
- Symptoms of AIDS-related nerve problems. Taking SAMe intravenously seems to improve some symptoms caused by AIDS related to nerve problems.
- Some research suggests that taking SAMe by mouth improves symptoms of fibromyalgia. However, evidence on the use of SAMe intravenously for fibromyalgia is inconsistent. Some research suggests it may reduce symptoms, while other research does not.
- Liver disorder in pregnancy (Intrahepatic cholestasis).. Taking SAMe by mouth or intravenously seems to helpful in treating liver disease during pregnancy.
- Sexual dysfunction. Research suggests that taking SAMe in addition to antidepressants improves sexual dysfunction in men with depression.
Insufficient evidence to rate effectiveness for…
- Alcohol-related liver disease. Evidence on the effect of SAMe in alcohol-related liver disease is inconsistent. Some early research shows that taking SAMe by mouth or intravenously reduces some symptoms associated with liver disease, such as jaundice and ankle swelling. However, it does not affect some liver function tests or reduce death or complications.
- Attention deficit-hyperactivity disorder (ADHD). Research on the effects of SAMe in people with ADHD is not clear. Early research suggests that SAMe might reduce ADHD symptoms in adults. However, some research also suggests it does not improve symptoms.
- Gilbert’s syndrome. Early research suggests that taking SAMe by mouth or intravenously might help the liver process a substance called bilirubin.
- The effects of SAMe in people with hepatitis is unclear. Some early research suggests that taking SAMe by mouth or intravenously improves liver function in people with hepatitis.
- Liver disease (cirrhosis). Evidence on the effect of SAMe for liver disease is inconsistent. Some early research suggests that taking SAMe by mouth or intravenously improves liver function in people with liver disease.
- Early research suggests that SAMe might reduce aggressive behavior in people with schizophrenia.
- Blood infection (Sepsis). Some early research shows that taking SAMe in addition to conventional treatment reduces the amount of time needed to recover from a septic infection.
- Quitting smoking. Early research suggests that SAMe does not help people quit smoking.
- Heart disease.
- Chronic low back pain.
- Improving intelligence.
- Premenstrual syndrome (PMS).
- Premenstrual dysphoric disorder (PMDD).
- Chronic fatigue syndrome (CFS).
- Multiple sclerosis.
- Spinal cord injury.
- Migraine headache.
More evidence is needed to rate SAMe for these uses.
The Natural Medicines Comprehensive Database, one of the most comprehensive and reliable natural medicine resources available, is by Therapeutic Research Faculty, an impressive team of experts. Natural medicines in this context refer to all herbal and non-herbal supplements. Although some of the supplements may not be produced from natural sources, they are included, because they are generally categorized with natural products.
The authors’ main goal is to create an objective, reliable, scientifically investigated database, including some evidence-based natural medicines for use by health care professionals and patients. The data and consensus of scientific information on natural medicines has been used to create both the database and the book. The authors support the concept that the more informed health professionals are about natural medicines, the better advice they can give to patients.