60 Railroad Place Suite 102
Saratoga Springs, NY 12866
Phone: 518-581-1872
Toll Free: 1-800-281-9198
e-mail: saratogahair@spa.net
The Role of Rogaine (Minoxidil) and Propecia (Finasteride)
Rogaine (Minoxidil) in pill form is one of
the strongest blood pressure medications used by physicians and
around 28 years ago was found to have the side-effect of promoting
hair growth in patients taking the medicine. For the past fifteen
years it has been available as a topical application, first in a
2% compound, and in recent years as a 5% formula. It is typically
applied twice a day to the area of the scalp being treated. Topical
minoxidil is available "over-the-counter" without a prescription
as either Rogaine or generic minoxidil.
The exact way that Minoxidil works to promote hair
growth is not fully understood. The medicine is known to be a potent
"vasodilator", which means that it causes the walls of
blood vessels to relax and widen, thus allowing more blood flow
to pass through them; but it is generally agreed by most experts
that there is some other additional way that the drug works in relation
to hair growth, which remains somewhat mysterious. The best way to describe it is that it seems to be a “growth factor” for hair.
Topical Minoxidil helps a person with hair loss mainly by slowing down the rate of hair loss. It is not real helpful in growing new hair, and in those men and women who do have this happen, it is more of a “peach fuzz” type of hair growth. If a patient who has been topical Minoxidil for quite a while, stops the drug for several weeks, then whatever gains were realized while taking the drug may be suddenly lost, as hair sometimes sheds rapidly.
When someone has been on Rogaine for some time and
is undergoing hair transplantation, it is our policy to have them
continue using it until the second session has grown out, at which
time they may simply stop using the drug. Using this strategy, the
patient will retain whatever remaining hair he has on top, so that
it can serve as a camouflage during the early months while the transplanted
hair is growing.
Also, in patients that have had several hair surgeries
in the past (multiple scalp reductions, old transplants, etc), Dr.
Beehner often will encourage them to "pre-treat" the scalp area
being transplanted with Rogaine for three weeks prior to and three
weeks after surgery, in order to help "prime" the blood
vessel circulation of the scalp and insure that all the grafts "take"
and grow hair. This same strategy is used for all of our female
patients, again, in order to help prevent any temporary "shocking"
of the "weak" hair on top as a result of the transplant
procedure.
Propecia (Finasteride) has been available
since 1997 and is the first oral medication to ever be approved
by the F.D.A. specifically for the prevention of hair loss. A physician’s
prescription is required. The overwhelming majority of men using
this drug experience some benefit from its use, sometimes dramatically.
It takes a full year before the full benefits can be fully seen
and appreciated. The recent 7-year research studies show that, for
most patients, there is a substantial increase in the number and
quality of hairs growing on the patient’s scalp for around
4-5 years, somewhat paralleling the length of time of a hair’s anagen growth cycle. After that, the patient’s overall hair mass on top
very gradually starts dropping ever so slightly each year, so that
at the end of around 10 years, the patient is back to where he started
10 years earlier. From our present knowledge of how the drug works, it makes sense to take it even after that point, because the rate of loss will still be dramatically less rapid than if one goes off the drug. There
also are many clinicians and investigators who believe that finasteride
works nearly as well when administered in dosage amounts substantially
lower (and cheaper) than that recommended by Merck.
(to see enlarged view of transplant
patients click the desired photo)
24 year old before going on
Propecia
Result several months after taking Propecia
Finasteride works by blocking the conversion of
the "male hormone," testosterone, into dihydrotestosterone
("D.H.T"), the hormone mainly responsible for hair loss.
It should be noted that DHT is not the cause of hair loss. Heredity
is. But, the expression of one’s heredity regarding hair loss
can only occur in the presence of DHT, which is obviously present
in all men. This does not mean that men who lose their hair have
more DHT or testosterone than men who retain a full head of hair.
There is a 5.9% incidence of sexual side effects
according to Merck, the manufacturer (2.9% if one subtracts the
3% incidence found present in the placebo group). In my experience
of having prescribed it to several hundred men over the past 5-6
years, I have only had four of them call and tell me they had any
sexual side effects, and one of them was able to return to taking
the medication at a lower dose with no further problems. Since I
have gone to routinely recommending lower daily doses, such side
effects are extremely rare.
In our opinion, Propecia is a valuable weapon against
the hereditary onslaught of hair loss and is a much better choice
than using Rogaine (Minoxidil) as a single treatment. I should be
mentioned here that combining Rogaine and Propecia has a synergistic
effect, which means that the benefits can be greater than the combined
“solo” effects of the drugs. Another strategy that we
commonly use is to combine transplanting of the front part of the
head in a younger patient with prescribing Propecia to help retain
the hair in back.
There is a new and stronger drug, similar to Propecia,
called Dutasteride (Avodart), which was recently put out by Glaxo Corporation with F.D.A. approval for use in the treatment of prostate problems. It is anticipated that many
physicians will prescribe this “off label” to younger
patients for hair loss. At this time I am not prescribing Dutasteride,
due to concerns that I have about the elevation of testosterone
that occurs and also because, if a man does have side effects from
the drug, there is the possibility of these effects remaining for
quite a few weeks (or months) due to the long half-life of the drug.
And finally, we don’t know what the long-term effects of such
strong drug are in terms of later medical effects on the patient's
health. For all of these reasons, Propecia will be the only oral
hair-loss drug we will be prescribing for some time to come.