II. Background
- Androgen Replacement in Women is controversial
- Androgen deficiency difficult to diagnose via labs
- Androgen may have significant adverse effects
III. Precautions
- No Testosterone products are FDA approved for Libido
- Long-term safety is a concern
- Risk of Breast Cancer and heart disease
IV. Indications
- NAMS position statement (September 2005)
- Only indicated in low desire in postmenopausal women
- Clinical uses that have been used
- Ovarian Failure or Oophorectomy
- Neuropsychiatric changes in women ages 30 to 50 years
- Testosterone Deficiency
- Decreased Libido, sexual desire and orgasm
- Hippocampus changes and DHEA-S Decrease
- Decreased concentration and memory
- Testosterone Deficiency
V. Contraindications
- Pregnancy or Lactation
- Hyperandrogenism
- Androgen-dependent tumor
- Breast Cancer history
VI. Advantages: Overall benefits of androgen supplementation
- Increases Bone Mineral Density
- Enhances libido and sexual satisfaction
- Improves sense of well-being
- Appears to improve concentration and memory
VII. Adverse Effects
- Liver abnormalities (associated with oral androgens)
- Iatrogenic Hyperandrogenism
- Irreversible effects
- Alopecia (Male patterned baldness)
- Voice deepening
- Clitoromegaly
- Reversible effects
- Acne Vulgaris and oily skin
- Hirsutism (facial hair)
- Adverse effect on lipid profile
- Increases LDL Cholesterol
- Decreases HDL Cholesterol
- Irreversible effects
VIII. Causes: Secondary Causes of Hypoandrogenism
- Hypopituitarism
-
Secondary Hypogonadism
- Premature Ovarian Failure
- Oophorectomy
- Secondary Adrenal Insufficiency
- Medications lowering androgen levels
IX. Protocol: NAMS Position Statement (September 2005)
- Administer lowest dose for shortest duration
- Start with 6 month trial
- Continue only if clinically improved symptoms
- Safety data does not exist for use longer than 24 months in women
- FDA approved in women for oral and IM Testosterone
- Transdermal is preferred route, but not FDA approved
- Testosterone monitoring only for high Testosterone dose
- Dosing in women is much lower than that used in men
X. Labs
-
Free Testosterone
- Not associated with low sexual desire
- Total Testosterone is not useful
- DHEA is more sensitive, but not specific
- Davis (2005) JAMA 294:91-6 [PubMed]
- Serum Hormone-binding globulin
XI. Preparations: Testosterone Replacement
- No commercial standard formulations exist in U.S. that supply recommended dose of 300 mcg/day
- Transdermal Testosterone ointment 2%
- Compounded 2% Testosterone propionate in petrolatum
- Apply small dab 2-3 times per day
- Apply to labia or hairless skin
- Methyl-Testosterone or EstraTest
- Risk of Hyperlipidemia and hepatic toxicity
- Testosterone patch 300 ug/day
-
Testosterone enanthate-Estradiol
- Given 1 ml IM every 4 weeks
-
Testosterone implant (pellet)
- Requires Transdermal Estrogen instead of oral
- Highly effective
XII. Preparations: Dehydroepiandrosterone-Sulfate (DHEA-S) Replacement
- May be used in combination with Testosterone
- Improves memory and concentration
- Excessive DHEA: Polycystic Ovary Syndrome
- Dosing U.S. Pharmaceutical DHEA
- DHEA 12.5 mg raises Serum DHEA-S 100-150 mg
- Post-Menopause Dose: 12.5 mg PO qd
- Post-Oophorectomy: 25 mg PO qd
- Target Serum DHEA-S: 80 to 370 ug/dl
XIII. Management: Monitoring
- History and examination (inc. Breast) every 6 months
- Annual labs
- Lipid profile
- Complete Blood Count
- Mammogram
- Endometrial Ultrasound
XIV. References
- Shuer (2001) CMEA Medicine Lecture, San Diego
- Guzick (2000) N Engl J Med 343:730-1 [PubMed]
- Margo (2006) Am Fam Physician 73(9):1591-603 [PubMed]
- Miller (2001) J Clin Endocrinol Metab 86:2395-401 [PubMed]
- Petering (2017) Am Fam Physician 96(7): 441-9 [PubMed]
- Shifren (2000) N Engl J Med 343:682-8 [PubMed]