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Female Sexual Dysfunction


Female Sexual Dysfunction - Treatment Options

Treatment of female sexual dysfunction is gradually evolving as more clinical and basic science studies are dedicated to evaluating the problem. At the present time therapeutic options are limited Aside from hormone replacement therapy which at the present time is the only FDA approved treatment of FSD, medical management of female sexual dysfunction remains in early experimental phases. Studies are in progress accessing the effects of vasoactive substances on the female sexual response. We will present some of the currents conventional treatments and some unconventional (off label) therapies we use at our center.

Estrogen Replacement Therapy

This treatment is indicated in menopausal women (either spontaneous or surgical). Aside from reliving hot flashes, preventing osteoporosis, and lowering risk of heart disease in post-menopausal women, estrogen replacement restores clitoral and vaginal lubrication and sensation to levels close to those of pre-menopausal women. Estrogens also have protective effects, which result in increased blood flow to the vagina and clitoris. This helps to maintain female sexual response over time. Without treatment the following symptomatic complaints are common loss of desire, decreased frequency of sexual activity, painful intercourse, diminished sexual responsiveness, difficulty achieving orgasm, and decreased genital sensation.

DHEA

Dehydroepiandrosterone is a male hormone produced by the adrenal gland and ovaries and converted to testosterone and estrogen. DHEA, which depletes with age, can be purchased over the counter in supplement form. In one small study published in the New England Journal of Medicine (Sept. 30, 1999), women who took 50 mg of DHEA daily noticed a significant increase in sexual interest. Other preliminary findings report encouraging results. However, we recommend the use of DHEA only after evaluating blood levels then replacing DHEA according to these blood levels.

Abstracts:

Androgen replacement therapy with dehydroepiandrosterone for androgen insufficiency and female sexual dysfunction: androgen and questionnaire results J Sex Marital Ther 2002;28 Suppl 1:165-73

Decreased free testosterone and dehydroepiandrosterone-sulfate (DHEA-S) levels in women with decreased libido. J Sex Marital Ther 2002;28 Suppl 1:129-42

DHEA: orthodox or alternative medicine?] Rev Med Brux 2001 Sep;22(4):A381-6

Decreased testosterone in regularly menstruating women with decreased libido: a clinical observation J Sex Marital Ther 2001 Oct-Dec;27(5):513-9

Testosterone

Testosterone is considered a crucial hormone for a healthy sex drive in women as well as men. Studies show that a dramatic drop in sex drive accompanies testosterone deficiency in women and sexual responsiveness.1 One group of researchers also found that sexual gratification in women directly correlated with their testosterone levels.2
A more recent preliminary study from a team of Dutch researchers finds that testosterone may also have specific physiological effects on vaginal arousal. Women who were given testosterone supplements showed markedly higher degrees of genital sensations and arousal in response to visual stimulus, compared to those given a placebo.3 Testosterone appears to stimulate neurons in the brain that activate the nervous system - which plays a major role in female sexual response. This treatment is often used in combination with estrogen in menopausal women, for symptoms of inhibited desire, dyspareunia, or lack of vaginal lubrication.. Potential benefits of this therapy include increased clitoral sensitivity, increased vaginal lubrication, increased libido, and heightened arousal. In our center we use testosterone in various delivery forms, which are custom compounded for us. We use testosterone in Sublingual or transdermal forms using minimal possible dose to raise serum testosterone levels to the upper quintile of normal range. When used at this physiologic doses side effects are keep at bay. *

Abstracts:

Time course of effects of testosterone administration on sexual arousal in women.
Arch Gen Psychiatry 2000;57:149-153. Tuiten A, Van Honk J, Koppeschaar H, Bernaards C, Thijseen J, Verbaten R.

Transdermal testosterone treatment in women with impaired sexual function after oophorectomy N Engl J Med 2000 Sep 7;343(10):682-8

Safety profile: transdermal testosterone treatment of women after oophorectomy* Obstet Gynecol 2001 Apr;97(4 Suppl 1):S10-S11

Sildenafil

This medication, commonly known as Viagra, serves to increase relaxation of clitoral and vaginal smooth muscle and blood flow to the genital area. Sildenafil may prove useful alone or possibly in combination with other vasoactive substances for treatment of female sexual arousal disorder. Several studies are already published demonstrating efficacy of sildenafil for treatment of female sexual dysfunction secondary to use of Antidepressants (SSRI) drugs, in the post-menopausal population and on to some degree in the pre-menopausal population with arousal disorder.

Abstracts:

Effect of sildenafil on subjective and physiologic parameters of the female sexual response in women with sexual arousal disorder. Sex Marital Ther 2001 Oct-Dec;27(5):411-20

Premenopausal women affected by sexual arousal disorder treated with sildenafil: a double-blind, cross-over, placebo-controlled study. BJOG 2001 Jun;108(6):623-8

Sildenafil in the treatment of female sexual dysfunction induced by selective serotonin reuptake inhibitors. J Reprod Med 1999 Jun;44(6):535-42

L-arginine
L-arginine This amino acid functions as a precursor to the formation of nitric oxide, which mediates relaxation of vascular and non-vascular smooth muscle. L-arginine has not been used in clinical trials in women; however preliminary studies in men appear promising. In our practice we use high dose oral L-arginine as an adjunct with other therapy.

Abstracts:

A double-blind placebo-controlled study of ArginMax, a nutritional supplement for enhancement of female sexual function. J Sex Marital Ther 2001 Oct-Dec;27(5):541-9


Off Label Therapeutic options
Phentolamine
Currently available in an oral preparation, this drug causes vascular smooth muscle relaxation and increases blood flow to the genital area. This drug has been studied in male patients for the treatment of erectile dysfunction. A pilot study in menopausal women with sexual dysfunction Results indicated a mild, positive effect of phentolamine across all measures of arousal, with significant changes in self-reported lubrication and pleasurable sensations in the vagina. In our practice we have had success with compounding phentolamine into a topical preparation and applying it directly to the clitoris

Abstracts:

Phentolamine mesylate in postmenopausal women with female sexual arousal disorder: a psychophysiological study. J Sex Marital Ther 2002;28 Suppl 1:205-15

Yohimbine
The African tree active ingredient is yohimbine, which has proven itself through clinical tests on both laboratory animals and human male test subjects to increase sexual desire as well as performance. Yohimbine is the only FDA-approved herbal medicine for treating impotency. However the studies on use with females have been few and with mixed results. At this time we limit our use of yohimbine as and adjunct with other therapies and for the treatment of antidepressant related sexual dysfunction.

Abstracts:

New directions in the treatment of antidepressant-induced sexual dysfunction Clin Ther 2000;22 Suppl A:A42-57; discussion A58-61

Mirtazapine, yohimbine or olanzapine augmentation therapy for serotonin reuptake-associated female sexual dysfunction: a randomized, placebo-controlled trial. J Psychiatr Res 2002 May-Jun;36(3):147-52

Female Sexual Dysfunction - Vasoactive Intestinal Polypeptides (VIP)
There is a growing body of evidence that women with sexual dysfunction will commonly have physiologic abnormalities, Sexual dysfunction occurs when during sexual stimulation abnormal arterial circulation into the vagina or clitoris, usually from atherosclerotic vascular disease, interferes with normal vascular physiologic processes. Clinical symptoms may include delayed vaginal engorgement, diminished vaginal lubrication, pain or discomfort with intercourse, diminished vaginal sensation, diminished vaginal orgasm, diminished clitoral sensation or diminished clitoral orgasm.. Vasoactive intestinal polypeptide (VIP) is a polypeptide hormone of the gut and nervous system, having a range of biological activities that includes vasodilation,. VIP has been used successfully in the treatment of erectile dysfunction. In a recent study it was shown that vasoactive intestinal polypeptide (VIP) in females regulates vaginal smooth muscle contractility and may play a role in increasing blood circulation to the vagina and clitoris.

Abstracts:

Experimental models for the investigation of female sexual function and dysfunction. Int J Impot Res 2001 Jun;13(3):151-6

Vasculogenic female sexual dysfunction: vaginal engorgement and clitoral erectile insufficiency syndromes.
Int J Impot Res 1998 May;10 Suppl 2:S84-90; discussion S98-101

VIP, vagina, clitoral and periurethral glans--an update on human female genital arousal Exp Clin Endocrinol, 98(2): 61-9 1991

Stearyl-norleucine-vasoactive intestinal peptide (VIP): a novel VIP analog for noninvasive impotence treatment. Endocrinology 1994 May;134(5):2121-5

Topical Alprostadil
Alprostadil is a hormone like substance that is referred to as prostaglandin E1, a known and potent vasodilator. Alprostadil has the power to directly affect the tissue that comes in contact with. This drug has been available for years for the treatment of erectile dysfunction in males. In males it hasbeen used under the brand name Caverject that is used as an injection into the tissue of flaccid penis with fast acting results. Our as Muse which is delievered via intraurethral pellets that are inserted into the meatus (eye of the penis) with the aid of a minute insertion stick. But a recent development has been the use of alprostadil in a transdermal cream or gel. Currently alprostadil cream is being sold in the far east under the trade name Befar and it may soon be released later in some other countries under the trade names Alprox and Topiglan. As for the United States Topiglan manufacture by Macrochem Corp. is currently in phase III study. Though most of the orginal studies and work have been done for the use on men. It appears in some recent studies that Alprostadil cream made be very useful for female sexual arousal disorder. Since clitoral stimulation is being seen as an important aid to sexual satisfaction in women. In one recent study ¾ of the women whom placed alprostadil topical reported clitoral engorement and warm tingling sensation consistent with sexual arousal with only minor side effects of mild burning in the area placed which is transient. In the most recent study using topical alprostadil they stated “enhancing subjective and physiological arousal during visual sexual stimulation was supported by patient ratings and physician assessments of vaginal erythema and transudate volume.

At the Center for Clinical Age Management we have been very successful with the use to topical Alprostadil in a liposomal gel for the treatment of female sexual aroual disorder. This prostaglandin at time used alone and at times combined with phentolamine, DHT or VIP.

Abstracts:

Topical alprostadil in the treatment of Female Sexual Arousal Disorder: a pilot study. J Sex Marital Ther 2001 Oct-Dec;27(5):531-40

Clitoral hemodynamic changes after a topical application of alprostadil J Sex Marital Ther 2001 Oct-Dec;27(5):405-10

Oral phentolamine and female sexual arousal disorder: a pilot study J Sex Marital Ther 1999 Apr-Jun;25(2):137-44


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