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Home > Hair Loss > Hair Loss Treatment Solution > Hair Loss Remedy
Minoxidil for female
Minoxidil has a hair
growth promoting effect on pattern baldness
affected hair follicles
Minoxidil was originally introduced in the early
1970s as a treatment for hypertension. Minoxidil
is in the class of treatments called "Potassium
Channel Openers" that are used primarily for
treating persons with high blood pressure.
Although several potassium-channel openers have
been used in research for many years, Minoxidil
is the only approved
one in this category of drugs for use in humans.
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Hypertrichosis or undesirable hair growth was
seen as a side effect of the medication. This
led to the development of a topical
formulation
of Minoxidil for the treatment of androgenetic
alopecia in men and subsequently in women. Now
Minoxidil is available in two forms to treat
different conditions. Oral Minoxidil is used to
treat high blood pressure and the topical
solution form is used to treat hair loss and
baldness. 2% topical Minoxidil was first
marketed for hair re-growth in men in 1986 in
the United States and the 5% product became
available in 1993.
Finasteride for female
Finasteride (Propecia)
is used by some dermatologists in Europe to
treat female pattern hair loss
Female pattern hair loss is a common condition
characterized by a diffuse reduction in hair
density over the crown and frontal scalp with
retention of the frontal hairline in affected
women. The prevalence of this type of hair loss
increases with advancing age. Women who are
affected often report feelings of embarrassment
and social anxiety and the condition often
worsens if left untreated.
The underlying principle behind the use of
Finasteride in male pattern hair loss is the
reduction of dihydrotestosterone (DHT) production; thus limiting the action of DHT on
scalp hair follicles. In the female sex, the use
of Finasteride and other 5 alpha - reductase
inhibitors has shown utility in women with
hirsutism. In theory, if all female pattern hair
loss were an androgen-dependent process like
male pattern baldness, then Finasteride should
have comparable efficacy in women with patterned
hair loss.
Although female pattern hair loss has been
widely thought to be the female counterpart of
male balding and is often referred to as female
androgenetic alopecia, the role of androgens in
baldness in women is not fully established.
Similarly the efficacy of Finasteride in the
treatment of androgenetic alopecia in women has
remained controversial.
Side effects and precautions
Finasteride is a teratogen, i.e. it can cause
malformation of the fetus. In animal studies,
male rats exposed to Finasteride in utero
develop hypospadias (a developmental anomaly of
the urethra) with cleft prepuce, decreased
anogenital distance, reduced prostate weight and
altered nipple formation.
Officially, women of potential childbearing age
should not take Finasteride or even handle
crushed or broken tablets. The risk of
teratogenicity in humans has not been evaluated
but Finasteride may cause hypospadias in the
developing male fetus. Exposure to semen of men
who are taking Finasteride does not pose a real
risk to the pregnant woman’s male fetus.
Finasteride tablets are coated to prevent
contact with the active ingredients during
manipulation.
In studies conducted with women premenopause,
the finasteride was always provded to the women
along with birth control pills. The use of birth
control to ensure pregnancy did not occur while
using finasteride was a must given the potential
effects finasteride can have on male embryos.
Conclusion
As stated earlier, Finasteride has not been
proven to be effective in postmenopausal women,
and at the moment it is FDA approved only for
use in men. It is neither approved nor currently
intended for use in women who are or may become
pregnant. Despite this, dermatologists in Europe
are using finasteride to treat female
androgenetic alopecia. In the absence of any
good clinical trials it is difficult to say how
effective it is for women with female pattern
hair loss.
Antiandrogens for female
Topical anti
androgens are used by some to treat their
pattern hair loss
Hamilton observed that when men with male
pattern baldness were castrated it prevented
further progression of hair loss; and that the
hair loss in eunuchs induced by exogenous
testosterone halted when testosterone treatment
was discontinued. This leads to the assumption
that it would be feasible to use an antiandrogen
to halt or even reverse pattern baldness in men
(and equally in women too). However,
antiandrogen therapy for androgen-induced
baldness is still in its infancy and relatively
limited information is available on how it can
be used and the appropriate formulations for
use.
Anti androgen drugs used in medicine may be
systemic or topical. Because systemic
anti-androgens reduce circulating testosterone,
which is required for normal male sexual
functioning, their use in androgenetic alopecia
is currently limited to women. A topical
antiandrogen is administered by applying the
compound to the surface of the skin, and appears
to hold promise for treatment in men as well as
women.
Ketoconazole shampoo for female
Ketoconazole
shampoo is a popular treatment in combination
with other treatments for pattern baldness
Ketoconazole (Brand name Nizoral) is actually a
synthetic antifungal drug used to prevent and
treat skin and fungal infections, especially in
immuno-compromised patients. This drug, an
Imidazole (an organic crystalline base that is
an inhibitor of histamine) derivative, is an
effective oral agent that has broad-spectrum
antifungal activity and is also a steroid
biosynthesis inhibitor. The androgen lowering
potential of high doses of Ketoconazole has led
to its use in the treatment of advanced prostate
cancer.
Formulated as a topical treatment, oral tablet
and as a shampoo, the drug Ketoconazole is
available by prescription. Branded Nizoral
shampoo contains 2 percent Ketoconazole and is
prescribed not only for the treatment of
infectious fungal scalp conditions, but also in
combination with other treatments for
androgenetic alopecia. Ketoconazole can cause a
reduction in the production of testosterone and
other androgens in the skin. A 1 percent version
is available over-the-counter, but it may not be
as effective as the 2 percent prescription
strength.
Tretinoin for female
Topical tretinoin is
used by some to treat male and female pattern
hair loss, sometimes in combination with
minoxidil
Tretinoin essentially is a derivative of vitamin
A. Topical Tretinoin is used by dermatologists
in the treatment of mild to moderate acne and on
skin that has been damaged by excessive exposure
to the sun. Two treatment forms of retinoic acid
have been developed - all-trans-retinoic acid
and 9-cis retinoic acid.
As a retinoid that regulates the growth and
differentiation of epithelial cells, topical
Tretinoin can be used to help enhance the
effects on Minoxidil for the treatment of hair
loss. Although Tretinoin alone does not act as a
significant stimulant of hair growth, there is
some evidence that a combination of Minoxidil
(0.5%) and Tretinoin (0.025%) promotes hair
growth in men with androgenetic alopecia. This
is most likely due to the increased absorption
of Minoxidil through alteration of the horny
outer layer of the epidermis, the stratum cornum.
However, the manufactured formulations of
Tretinoin (Retin-AŽ) and Minoxidil (RogaineŽ)
are incompatible and become ineffective if
compounded in one formulation. They must either
be mixed using generic powder forms or be
applied as separate treatments. For efficacy,
RogaineŽ must be applied every morning and night
and Retin-AŽ during the day. Even though there
appears to be some benefit in using the
combination, the need for an extra application
during the day is generally considered to be
rather inconvenient, discouraging wide
acceptability. Additionally the skin irritation
caused by Tretinoin is not always well
tolerated.
Side effects
The potential side effects of topical Tretinoin
are irritation and photosensitivity .As
Tretinoin does not work alone, the potential
side effects of Minoxidil should also be
considered when administering treatment.
Concerns about increased irritation, possible
systemic absorption of drug, and difficulties
related to the use of both agents together has
led to the limited usage of this line of
treatment.
Diazoxide for female
Diazoxide is a nondiuretic benzothiazide. This
potent and rarely anti-hypertensive agent has
diverse pharmacologic effects including:
Hypertrichosis (hair growth).
Hyperglycemia associated with suppression of
insulin release, which is why it is used to
treat idiopathic hypoglycemia of infancy.
Elevation of serum levels of androgens.
Taking advantage of the hypertrichotic side
effects of diazoxide, several authors have
examined the effect of topical application of
the drug on hair re-growth in androgenetic
alopecia. A topical formulation of diazoxide was
reported in 1989 to show efficacy in male
pattern baldness. Nineteen men with "early to
midstage" androgenetic alopecia were treated
with 3% diazoxide solution twice daily for 2 to
11 months. Reports indicate that four men had a
dense growth of new hair, seven had moderate
growth by way of some new terminal hairs, one
had vellus hair growth, and seven had no
re-growth at all. Local irritation occurred in
one patient.
Estrogen for female
Topical estrogen is used
by some to treat pattern hair loss
Estrogens are indirect anti androgens,
increasing the production of sex hormone binding
globulin (SHBG) and thus leading to a decrease
in the bioactive free testosterone. SHBG, a
glycoprotein synthesized by the liver, is the
most important protein for androgen binding .The
more potent androgens and estradiol are bound in
the plasma to SHBG, although the binding
affinities differ. Elevated testosterone causes
SHBG synthesis to decrease, in addition to an
increased activity of 5 alpha - Reductase, the
enzyme responsible for the metabolism of
testosterone to DHT. Estrogens increase Sex
hormone binding globulin (SHBG) and thus further
decrease the amount of free testosterone.
Extensive clinical trials of the use of a
topical estrogen preparation in subjects with
androgenetic alopecia have been not been
conducted as yet. However, one double-blind,
controlled, 6-month trial of topical 0.025% 17
alpha - estradiol conducted with 51 men and
women who had pattern alopecia showed a
significant reduction in the percentage of
telogen hairs along with stabilization of the
hair loss. Although more than 70 percent of a
topically applied preparation is metabolized to
weak non-androgenic by-products, the absorption
of topical estrogen can lead to decreased libido
in men.
Topical estrogens are not generally available in
North America, but they are being used in Europe
and topical estrogen products are available from
a number of pharmaceutical companies there.
There seems to be some confusion over which
estrogen formulation is best (as there are
different types of estrogen) but it seems that
estrogen application topically could help treat
pattern baldness in both men and women.
Progesterone for
female
Progesterone is a
potential topical hormone for treating male
pattern baldness
Topical progesterone has been utilized widely,
but has not been thoroughly tested in clinical
studies. One study undertaken to ascertain the
efficacy of the compound used topical
progesterone (concentration and vehicle unnamed)
for 10 to 48 months in 12 men, in the age group
18 to 39 years, with male pattern baldness. None
of the subjects grew hair: 6 of them developed
further thinning, and the other 6 had the same
hair density.
Overall, topical progesterone has not been found
to be of great value in treating androgenetic
alopecia, but it can have a limited positive
effect for some people.
Oral contraceptive pills for female
Oral
contraceptive pills can be used in the treatment
of female pattern hair loss
Although testosterone is considered to be a male
hormone, it also occurs naturally in women. The
exact roles of androgen over-production,
activity, and androgen receptors in androgenetic
alopecia in women are still unclear.
Approximately 30 percent of a woman’s
testosterone is produced in the ovaries; the
other 70 percent is derived from the
transformation of adrenal androgen precursors
such as dehydro epiandrosterone (DHEA) and
androstenedione, both of which decline
inevitably with age.
Considering the involvement of androgen
receptors and 5 alpha - reductase in
androgenetic alopecia, blocking them would be a
logical approach to treatment. Over the years,
several agents that target these mechanisms have
been used, with varying success rates in men and
women.
Side effects of oral contraceptive pills
Some authors indicate that oral contraceptive
pills are generally well tolerated, the main
adverse effects being nonspecific. Some women
complain of headache, breast tenderness and
nausea, but these drugs have no clinically
relevant effects on metabolic or liver functions
or on bodyweight. Effects on mood and libido are
rare. Whether or not oral contraceptive pills
increase the risk for the development of breast
cancer is still a controversial issue.
Some authors are of the opinion that combination
oral contraceptive pills appear to have
potential serious side effects. These include an
increased risk of venous thromboembolism
(occlusion of a blood vessel due to a fibrinous
clot), stroke, and myocardial infarction (heart
attack). The higher the dose of ethinyl
estradiol, the higher is the risks of venous
thromboembolism, ischemic stroke, and myocardial
infarction. The risks of stroke and myocardial
infarction are also more likely in individuals
with hypertension, diabetes, and migraine
headaches and in individuals who smoke
cigarettes.
Conclusion
Combined oral contraceptives containing
antiandrogenic progestogens are likely to be
particularly useful in treating women who have
pre-existing androgen-related disorders and
require contraception. However, similar to other
agents, progress of hair growth in androgenetic
alopecia takes a long time with oral
contraceptive pills. This lower responsiveness
may reflect the natural length of the hair
growth cycle, and the fact that androgenetic
alopecia has multifactorial etiologies involving
genetic, metabolic, environmental and
nutritional factors as well as androgen
production.
Systemic
spironolactone for female
Some women
use systemic spironolactone to treat female
pattern baldness
Spironolactone therapy may reduce shedding of
hair in those individuals without
hyperandrogenism and may promote some hair
growth in those with hyperandrogenism (an
excessive production of male hormones). In some
women with hirsutism the drug decreases the
growth rate and mean diameter of facial hair.
Side effects of spironolactone
One of the potential side effects of
spironolactone in both men and women is acute
intoxication of potassium, a condition called
hyperkalemia. Decreased libido, impotence, and
worse still, gynecomastia (excessive development
of the male breasts) can occur in men treated
with spironolactone, thus confining the systemic
use to women. In women, breast tenderness,
irregular menses, and mood swings are not
uncommon side effects. Women of childbearing age
who are treated with spironolactone should use
effective contraception, preferably a
concomitant oral contraceptive pill. If
pregnancy occurs while they are on
spironolactone, there is a possible risk of
feminization of the male fetus.
Conclusion
No dermatologic indications for spironolactone
have been approved by the FDA. It is only
approved as a diuretic, for the treatment of
primary hyperaldosteronism, idiopathic
hyperaldosteronism, edematous conditions of
congestive heart failure, cirrhosis with ascites,
nephrotic syndrome, essential hypertension, or
hypokalemia. Spironolactone is perceived to be
somewhat effective in preventing hair loss in
androgenetic alopecia in women at doses of 200
mg per day, but hair re-growth is limited.
Laboratory monitoring every 3 to 4 months is
recommended to assist in following androgen
suppression if a condition of androgen excess is
found.
Systemic
flutamide for female
Systemic flutamide is an antiandrogen treatment for
female pattern baldness
Flutamide is a non-steroidal antiandrogen that
is devoid of other hormonal activity. It most
likely acts after converting to
2-hydroxyflutamide, which is a potent
competitive inhibitor of dihydrotestosterone (DHT)
binding to the androgen receptor. Flutamide is
currently approved for the treatment of prostate
cancer in combination with luteinizing
hormone-releasing hormone (LHRH), wherein
Flutamide is thought to inhibit the action of
testosterone on cancer cells by blocking the
receptor sites that testosterone uses in the
cells.
Side Effects of flutamide
Side effects of oral Flutamide are primarily
gastrointestinal, mainly diarrhea. A high
incidence of dry skin (58 percent) has also been
reported. An important side effect to be
cautious about in oral administration is
hepatotoxicity, including progressive liver
failure, which limits the usefulness of the drug
in androgenetic alopecia. Evidence of hepatic
injury includes elevated serum transaminase
(liver enzyme) levels, jaundice, hepatic
encephalopathy, and death related to acute
hepatic failure. Serum transaminase levels
should be measured prior to starting treatment
with Flutamide. Liver function tests also should
be obtained at the first signs and symptoms
suggestive of liver dysfunction, like nausea,
vomiting, abdominal pain, fatigue, anorexia,
"flu-like" symptoms or jaundice.
Flutamide should not be given to pregnant women
or women desiring to become pregnant. If the
drug crosses the placenta, it would be expected
to produce male pseudohermaphroditism, similar
to cyproterone acetate. Therefore Flutamide
should be combined with an oral contraceptive
pill in women of child-bearing potential to
avoid the risk of pregnancy.
Systemic cyproterone
acetate for female
Systemic cyproterone acetate is a popular
treatment for female pattern baldness in Europe
Cyproterone acetate belongs to the class of
hormone inhibitors and has been prescribed to
treat severe hirsutism in woman of childbearing
age and also androgenetic alopecia in women.
Every woman normally produces a certain amount
of androgen, which is necessary for axillary and
pubic hair formation and maintenance.
Cyproterone acetate is an anti-androgen and
blocks the normal activity of androgen by
suppressing the actions of testosterone (and its
metabolite dihydrotestosterone) on tissues. The
term antiandrogen, as defined by Dorfman,
implies prevention of expression of androgen
activity at target sites and does not include
other mechanisms of decreasing androgen action,
such as a decrease in production of androgens,
interference with androgen metabolism, or change
in androgen plasma protein binding. However,
Cyproterone acetate exerts its effects by
blocking the binding of dihydrotestosterone (DHT)
to its receptors.
Cyproterone acetate is available in Europe, Asia
and Canada, but not in the US. Oral cyproterone
acetate is poorly absorbed (5 to 30 percent),
with maximum plasma levels achieved in a few
hours. 58 percent of the drug is excreted via
bile and 30 percent via urine.
Side effects of cyclical antiandrogen therapy
Cyproterone acetate is potentially damaging to
the liver (hepatotoxic) and liver function tests
should be performed periodically. Women of
childbearing potential must never get pregnant
while taking Cyproterone. Fetal malformations
(damage) can occur in patients on cyproterone;
therefore the drug must be prescribed in
conjunction with the contraceptive pill.
Potential side effects of CAT are somewhat
similar to those seen with intake of oral
contraceptive pills and include:
Nausea
Headache
Asthenia (lack of bodily strength
Increased weight
Decreased libido
Breast discomfort and depression have been
reported in more than 5 percent of cases treated
with CAT
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