Stafford Pharmacy & Home Healthcare
1475 St. Edward Blvd.
N. Lethbridge, Alberta T1H 2P9
(403) 320-6500 Fax (403) 320-6676 Toll Free:
1-800-320-1260
Website:
http://www.staffordpharmacy.com
What
is menopause?
Before
we can understand the rationale for hormone replacement, we need to first
understand the hormonal changes that occur during menopause. Menopause is a natural stage in life that
occurs when a woman stops having menstrual cycles. However, menopausal symptoms and irregular menstrual cycles can
begin to occur 5-10 years before menopause as the ovaries gradually stop
producing eggs and there is a progressive decline in hormone production. This time period of gradual change is called
peri-menopause.
What
does hormone replacement do?
Hormone
replacement therapy (natural and synthetic) restores declining hormonal levels
associated with menopause. This helps
alleviate many discomforts associated with menopause and allows the body to
continue to receive the beneficial effects hormones have against cardiovascular
disease and osteoporosis.
What
is natural hormone replacement therapy?
Natural
hormone replacement therapy uses hormones that are identical in chemical
structure to the hormones produced by the human body. These “bio-identical” hormones are given in the same proportions
that occur naturally in a woman’s body.
What is the difference between natural hormones and conventional hormonal replacement medications?
Conventional
hormonal therapies use hormones that are not identical in chemical structure to
the body’s natural hormones. Synthetic
hormones are not given in the same proportions as the naturally occurring
levels in the body.
What
is the source of natural hormones?
Natural
hormones are obtained from precursor molecules found primarily in plants such
as wild yams and soybean. These estrogen
and progesterone-like compounds are then transformed in the laboratory to the
bio-identical hormones found naturally in humans.
Do
natural hormones require a prescription?
Yes
– They must be prescribed by a licensed physician.
What
is estrogen?
Estrogen
is not one hormone, but a group of similar hormones of varying degrees of
activities, all produced in the ovaries.
The three most important hormones and the proportions they occur in are
estrone (10-20%), estradiol (10-20%) and estriol (60-80%).
What
does estrogen do?
Estrogen
is secreted by the ovaries throughout a woman’s reproductive years and is the
female hormone responsible for ovulation.
Estrogen receptors are located throughout the body, in the breasts,
lining of the uterus, cervix, brain and in bones.
Estrogen
plays an important role in a woman’s life from the time she enters puberty
until the end of her last menstrual period.
Not only does estrogen have beneficial effects on cholesterol and lipid
levels but it also contributes to the strengthening of bones and the mental
well-being of women.
What
does estrogen replacement do?
Decreased
production of estrogen by the ovaries can lead to symptoms such as hot flashes,
night sweats, vaginal dryness, urinary tract infections, depression and
irritability. Estrogen replacement can
help relieve these symptoms, provide protection against cardiovascular diseases
and strengthen bones, which decreases the risk for osteoporosis. Although estrogen offers many benefits, it
is not indicated for everyone and women should evaluate their individual risks
versus benefits.
What is triple estrogen (Tri-est?)
Tri-estrogen
contains 10% estrone, 10% estradiol and 80% estriol. These proportions are similar to normal physiological
levels. Tri-est is not available
commercially but specialty pharmacies can compound these hormones into oral
capsule or topical gel and cream formulations.
What
are the benefits of using Tri-est over conventional hormonal therapies?
Because
Tri-est uses bio-identical hormones in similar proportions to naturally
occurring levels, many women experience less side effects such as breast
tenderness, nausea, vomiting and fluid retention with Tri-est, compared to
synthetic estrogens. Tri-est is
compounded in the pharmacy, therefore, doses and preparations can be
individualized for each patient.
How
long will I need to use Tri-est?
Tri-est
can be given to treat menopausal symptoms and its usage can be discontinued
when these symptoms subside. However,
because of the other health benefits associated with estrogen replacement, Tri-est may be continued for life for many women.
What
is progesterone?
Progesterone
is a female hormone produced by the ovaries each month during the second half
of the cycle.
What
does progesterone do?
Progesterone
prepares the lining of the uterus (endometrium) for pregnancy but in the
absence of pregnancy, progesterone helps facilitate the monthly shedding of the
endometrial layer. Progesterone and
estrogen work together in a delicate balance to regulate the menstrual
cycle.
What
is the purpose of progesterone therapy?
Progesterone
replacement can help restore the natural hormonal balance in woman entering
menopause, which can further aid in alleviating unwanted menopausal symptoms
such as irregular bleeding and depression.
It is also recommended that women taking estrogen who still have a
uterus also take progesterone because it opposes the stimulatory action of
estrogen on the endometrial lining and protects against endometrial
cancer.
Progesterone
has also been shown to have beneficial effects on bones and may help protect
against osteoporosis and fractures.
Progesterone
therapy can also help relieve PMS symptoms when given from day 14 to 28 of a
woman’s cycle.
What
are the side effects associated with natural progesterone therapy?
When
given appropriately, side effects are generally minimal but temporary spotting,
acne, dizziness and sleepiness can occur.
Notify your doctor or pharmacist if these side effects become persistent
or bothersome because you may not be receiving an appropriate dose.
What
is the difference between natural progesterone and other progestins?
Progestins
are synthetic hormones that have actions that are similar but not identical to
progesterone.
Natural
progesterone replacement uses the bio-identical progesterone hormone produced
by the ovaries. Natural progesterone is
usually micronized (made into very small particles) to increase its
absorption. Natural progesterone is
available in both oral capsules and topical cream and gel formulations, vaginal
suppositories, oral liquids and sublingual drops or lozenges. With the
exception of the oral capsules, these dosage forms must be compounded by a
pharmacist. All forms can be obtained by prescription only.
What
is testosterone?
Testosterone
is a hormone found in both men and women, although men have higher levels. In men, testosterone is produced mainly by
the testes, while women produce testosterone in the ovaries and adrenal glands.
What
does testosterone do?
Testosterone
plays an important role in the overall health and well-being of both men and
women. In males, besides being
responsible for the changes that occur during puberty, testosterone enhances
sex drive, elevates mood, builds muscle, strengthens bones and increases energy
levels. In women, testosterone enhances
sex drive, improves mood, strengthens bone and restores energy.
What
are the benefits and risks of taking testosterone?
In
addition to improving libido, energy and bone strength in both men and women,
when used properly, testosterone is reported be protect against
atherosclerosis, heart disease and other vascular disorders. Contrary to synthetic or anabolic steroids,
natural testosterone has beneficial effects on cholesterol levels.
Testosterone
supplementation in men and women can increase the risk of liver toxicity,
especially if high doses are taken orally because testosterone is taken
directly to the liver following oral administration. For this reason, it is better to give testosterone in appropriate
physiological doses through non-oral routes such as patches, gels or injection
for men and gels or vaginal ointments for women. In women, side effects such as oily skin, acne, increased facial
hair and irritability can occur, however they are very unlikely when
testosterone is dosed correctly.
What is the difference between natural testosterone and synthetic testosterones?
Natural
testosterone is bio-identical to the hormone produced in the body and therefore
works in exactly the same way.
Synthetic testosterones work like testosterone in some, but not all
ways. The anabolic steroids are
testosterone derivatives which have the muscle building effects of
testosterone, but contrary to the natural hormone, they increase the risk for
heart attack and stroke and are associated with increased side effects.
Is
there a commercial source of testosterone for women?
Natural testosterone can be prescribed by your doctor and compounded by special pharmacies into topical formulations.
Interpretation
of lab values
Normal blood pressure
~120/80
|
Cholesterol levels |
Normal (mmol/L) 30 yr. old female |
Normal (mmol/L) 50 yr. old female |
Normal (mmol/L) 65 yr. old female |
|
Total Cholesterol |
0 – 5.2 |
0 – 5.2 |
0 – 6.2 |
|
LDL |
2.0 – 3.4 |
2.2 – 3.4 |
2.4 – 4.1 |
|
HDL |
0.9 – 2.2 |
0.9 – 2.4 |
0.9 – 2.4 |
|
TG |
0 – 2.30 |
0 – 2.3 |
0 – 2.3 |
|
Bone Mineral Density |
|
|
Normal |
> 0 to -1 |
|
Osteopenia |
-1 to -2.5 |
|
Osteoporosis |
< -2.5 |
In women over the age of 65, a finding of osteopenia
indicates a 2-fold risk increase for fractures and a woman with osteoporosis
will have a 4-5 fold higher risk for future fractures.
Risk factors for osteoporosis and fractures
o Women are at higher risk
than men
o Age – risk increases with
age
o Small frame size
o Early menopause (normal or
surgical)
o Low calcium and vitamin D intake
o Smoking
o High caffeine intake
o Excessive alcohol consumption
o Sedentary lifestyle
o Heredity and race – Caucasians and Asians
are at greater risk
o Maternal history of hip fracture
o Certain medications (e.g. corticosteroids,
heparin, excess thyroid hormone)
o Previous falls or fractures of any type
after age 50
o Predisposing medical conditions (e.g. malabsorption,
renal failure, hyperparathyroidism)
The recommended daily intake
of calcium for both men and women between the ages of 19 and 49 is 1000mg. Individuals over 50 should receive 1000 –
1500 mg of calcium daily.