Saw palmetto is a tree. Its ripe fruit is used to make medicine.
Saw palmetto is most commonly used for decreasing symptoms of an enlarged prostate called benign prostatic hypertrophy (BPH). But it doesn't seem to improve this condition. Saw palmetto is also used to prevent complications from prostate surgery and for treating other prostate conditions, male-pattern baldness (androgenic alopecia), sexual dysfunction, and other conditions, but there is no good scientific evidence to support most of these uses.
- Transurethral resection of the prostate (TURP).  Saw palmetto 320 mg daily seems to improve outcomes after TURP surgery in a dose-dependent manner.
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- Benign prostatic hyperplasia (BPH).  Although data are conflicting, overall it appears that saw palmetto does not offer significant benefit for symptoms of BPH.
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- Androgenic alopecia.  It is unclear if oral or topical saw palmetto is beneficial in patients with androgenic alopecia.
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- Chronic bronchitis. Login for details
- Chronic prostatitis and chronic pelvic pain syndrome (CP/CPPS).  It is unclear if oral saw palmetto is beneficial in patients with CP/CPPS.
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- Hirsutism. Login for details
- Prostate cancer.  Small preliminary studies suggest that saw palmetto does not reduce prostate cancer risk or symptoms associated with prostate cancer.
Login for details - Prostatitis.  Adding saw palmetto to antibiotic therapy seems to relieve some symptoms of bacterial prostatitis more effectively than antibiotics alone.
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- Sexual dysfunction. Login for details
Saw palmetto doesn't shrink the overall size of the prostate, but it seems to shrink the inner lining that puts pressure on the tubes that carry urine. Saw palmetto also might prevent testosterone from being converted to a more potent form called dihydrotestosterone (DHT). It is thought that some types of hair loss are caused by increased sensitivity of hair follicles to DHT. Reduced levels of DHT may help prevent these types of hair loss.
When taken by mouth: Saw palmetto is LIKELY SAFE for most people when taken by mouth for up to 3 years. Side effects are usually mild and may include dizziness, headache, nausea, vomiting, constipation, and diarrhea.
When given rectally: Saw palmetto is POSSIBLY SAFE when administered into the rectum appropriately for up to 30 days. It is unknown if it is safe to use for longer periods of time.
Special Precautions & Warnings:
Pregnancy and breast-feeding: Saw palmetto is LIKELY UNSAFE when taken by mouth during pregnancy or breast-feeding. It acts like a hormone, and this could be dangerous to the pregnancy. Don't use during pregnancy or breast-feeding.Surgery: Saw palmetto might slow blood clotting. There is some concern that it might cause extra bleeding during and after surgery. Stop using saw palmetto at least 2 weeks before a scheduled surgery.
Birth control pills (Contraceptive drugs)
Interaction Rating=Moderate Be cautious with this combination.
Some birth control pills contain estrogen. Saw palmetto might decrease the effects of estrogen in the body. Taking saw palmetto along with birth control pills might decrease the effectiveness of birth control pills. If you take birth control pills along with saw palmetto, use an additional form of birth control such as a condom.
Some birth control pills include ethinyl estradiol and levonorgestrel (Triphasil), ethinyl estradiol and norethindrone (Ortho-Novum 1/35, Ortho-Novum 7/7/7), and others.
Estrogens
Interaction Rating=Moderate Be cautious with this combination.
Saw palmetto seems to decrease estrogen levels in the body. Taking saw palmetto along with estrogen pills might decrease the effectiveness of estrogen pills.
Some estrogen pills include conjugated equine estrogens (Premarin), ethinyl estradiol, estradiol, and others.
Medications that slow blood clotting (Anticoagulant / Antiplatelet drugs)
Interaction Rating=Moderate Be cautious with this combination.
Saw palmetto might slow blood clotting. Taking saw palmetto along with medications that also slow clotting might increase the chances of bruising and bleeding.
Some medications that slow blood clotting include aspirin, clopidogrel (Plavix), diclofenac (Voltaren, Cataflam, others), ibuprofen (Advil, Motrin, others), naproxen (Anaprox, Naprosyn, others), dalteparin (Fragmin), enoxaparin (Lovenox), heparin, warfarin (Coumadin), and others.
Herbs and supplements that might slow blood clotting: Using saw palmetto with other herbs that can slow blood clotting might increase the risk of bleeding in some people. These other herbs include angelica, clove, danshen, garlic, ginger, ginkgo, Panax ginseng, red clover, turmeric, vitamin E, willow, and others.
There are no known interactions with foods.
The following doses have been studied in scientific research:
ADULTS
BY MOUTH:
- A type of prostate surgery (transurethral resection of the prostate or TURP): 320 mg of saw palmetto extract daily for 2 months before surgery.
American Dwarf Palm Tree, Baies du Chou Palmiste, Baies du Palmier Scie, Cabbage Palm, Chou Palmiste, Ju-Zhong, Palma Enana Americana, Palmier de Floride, Palmier Nain, Palmier Nain Américain, Palmier Scie, Sabal, Sabal Fructus, Sabal serrulata, Saw Palmetto Berry, Serenoa repens, Serenoa serrulata.
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