Related Experiment Video
Updated: Aug 6, 2026

06:51
Ovariectomy and 17β-estradiol Replacement in Rats and Mice: A Visual Demonstration
Published on: June 7, 2012
Spironolactone and estrogen-progestin therapy for hirsutism
Southern Medical Journal
|April 1, 1987
Summary
Spironolactone combined with norethindrone and ethinyl estradiol effectively treated hirsutism in women. This hormonal therapy significantly reduced testosterone levels and improved clinical symptoms with few side effects.
Area of Science:
- Endocrinology
- Pharmacology
Background:
- Hirsutism is a common condition in women, often linked to elevated androgen levels.
- Current treatments for hirsutism can have variable efficacy and side effect profiles.
Purpose of the Study:
- To evaluate the efficacy and tolerability of spironolactone in combination with oral contraceptives for treating hirsutism.
- To assess the impact of this combination therapy on hormonal profiles.
Main Methods:
- Sixteen women with hirsutism were treated with spironolactone (100 mg daily) continuously.
- Norethindrone (1 mg) and ethinyl estradiol (35 mg) were administered cyclically for 21 days every 28 days.
- Dosage adjustments were made, with some patients receiving up to 200 mg of spironolactone daily.
Main Results:
- Clinical improvement was observed in 11 out of 16 patients, with an additional patient responding to increased spironolactone dosage.
- Significant reductions in serum total testosterone, serum free testosterone, and percentage of free testosterone were noted.
- The combination therapy was generally well-tolerated, with infrequent side effects.
Conclusions:
- Spironolactone, in combination with norethindrone and ethinyl estradiol, is an effective treatment for hirsutism.
- This therapeutic regimen leads to significant hormonal normalization and clinical symptom improvement.
- The treatment demonstrates a favorable safety profile with minimal adverse events.
Related Concept Videos
Target Cell Response to Hormones
Hormones intricately bind to receptors on the surface or within target cells, initiating a cascade of cellular responses.
Notably, the cellular response can be regulated by altering the number of receptors expressed in the cell. For example, prolonged exposure to elevated hormone levels results in a gradual decline or down-regulation in the number of receptors for that specific hormone on the cell surface. Conversely, in response to low hormone levels, cells may use up-regulation, producing an...
Notably, the cellular response can be regulated by altering the number of receptors expressed in the cell. For example, prolonged exposure to elevated hormone levels results in a gradual decline or down-regulation in the number of receptors for that specific hormone on the cell surface. Conversely, in response to low hormone levels, cells may use up-regulation, producing an...
Drugs for Treatment of Constipation-Predominant IBS
Pharmacological therapies for IBS-C are designed to alleviate abdominal discomfort and enhance bowel function. In patients with IBS-C, fiber supplements may help soften stools and decrease straining, but may also lead to increased gas production and bloating. Osmotic laxatives like milk of magnesia are frequently used to soften stools and increase stool frequency in IBS-C patients. In addition, two drugs approved for use in severe IBS-C adult cases are linaclotide (Linzess) and lubiprostone...
Hormonal Regulation of the Menstrual Cycle
The ovarian cycle regulates endometrial changes throughout a single menstrual cycle via the coordinated action of gonadotrophin-releasing hormone (GnRH) and gonadotrophins.
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH release.
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH release.
Hormonal Control of the Ovarian Cycle
The ovarian cycle is meticulously regulated by the hypothalamic-pituitary-gonadal axis. This cycle orchestrates the release of a mature oocyte, essential for reproduction.
Before puberty, the hypothalamus releases GnRH in a low frequency, low amplitude pulsatile manner. This along with the immature hypothalamic-pituitary-gonadal axis activity, results in low estrogen levels and the absence of a fully functional ovarian cycle. At puberty, GnRH secretion increases in both frequency and...
Before puberty, the hypothalamus releases GnRH in a low frequency, low amplitude pulsatile manner. This along with the immature hypothalamic-pituitary-gonadal axis activity, results in low estrogen levels and the absence of a fully functional ovarian cycle. At puberty, GnRH secretion increases in both frequency and...
Birth Control Methods
Vasectomy is a surgical form of male sterilization that involves severing and sealing the vasa deferentia, preventing sperm from mixing with semen during ejaculation. Because a vasectomy does not impact the testes' ability to produce testosterone, hormone levels, libido, and sexual function generally remain unchanged. While vasectomy is highly effective in preventing pregnancy, with a success rate near 99.85%, rare cases of recanalization (spontaneous reconnection) can occur. Although vasectomy...
Intrauterine Drug Delivery Systems
Controlled-release systems for intravaginal and intrauterine drug delivery have been developed primarily for the administration of contraceptive steroid hormones. These delivery routes circumvent first-pass hepatic metabolism, thereby enhancing bioavailability and allowing for reduced systemic dosages compared to oral administration. Such approaches contribute to improved therapeutic efficacy and patient compliance, particularly in long-term contraceptive regimens.Intravaginal Drug Delivery...

