Lupron (leuprolide acetate)
Lupron (leuprolide acetate) is often
prescribed for
endometriosis because it dramatically lowers estrogen
levels by "down regulating" the bodies production
of FSH and LH. Endometrial tissue is highly dependent
upon estrogen for growth.
Lupron
is given in IVF cycles according to patient specific
protocols usually the "luteal Lupron" or "flare"
protocols. Initially, Lupron stimulates the pituitary
to release FSH (flare effect) within 7-10 days, however,
Lupron will inhibit the production of gonadotropin releasing
hormone. Since GnRH is required to cause the pituitary
to produce FSH and LH, Lupron essentially "shuts
down" the bodies reproductive hormone system.
While down regulated, IVF
patients receive externally administered FSH
(Gonal-F, Follistim) to cause the recruitment and
development of follicles. Dosages of FSH are adjusted
based upon each patient's response and it is continued
until the follicles are mature.
Ovulation
cannot occur naturally while on Lupron because LH,
which triggers ovulation, is suppressed. This prevents
a premature surge of LH before the retrieval, which
could cause loss of the cycle. Once the eggs are mature,
an injection
of hCG or LH is given to stimulate ovulation and
retrieval is scheduled 35 hours later.
When a patient is on the "luteal
Lupron" protocol she usually starts Lupron 7 days
prior to her next menstrual cycle. Dosages are adjusted
based upon each patient's individual response. The "flare
protocol" is usually used in poor responders. When
Lupron is first administered there is a characteristic
initial increase in FSH for several days followed by
suppression. Lupron is administered on day 2 on the
menstrual cycle and FSH is added to take advantage of
this initial surge in FSH.
Ganirelix Acetate and Cetrotide
(cetrorelix acetate)
Ganirelix Acetate (ganirelix acetate)
and Cetrotide (cetrorelix acetate) also suppress FSH
and LH production; however, the suppression is more
complete than with Lupron. These fertility
drugs are GnRH agonists meaning they block the action
of GnRH at the pituitary virtually stopping FSH and
LH production. Because the suppression is so complete
these drugs can be used in IVF for shorter periods of time
and the dosage
of FSH that must be given is sometimes higher.
Other Fertility Medications
- Fertility Drugs-Overview
- Clomid
for ovulation induction (Clomid Web Site).
- Gonal-F,
Follistim, Bravelle, Menopur, Repronex for ovulation
induction.
- Glucophage
(metformin) is used in the management of polycystic
ovarian syndrome.
- Parlodel
for hyperprolactinemia
- hCG
or Luveris will be used to stimulate ovulation
36 hours prior to egg retrieval in ART procedures
or 36 hours prior to insemination in IUI cycles. Luveris
may also be prescribed for women with hypogonadotropic
hypogonadism, which is extremely low levels of FSH
and LH.
- Birth
Control pills may be prescribe to insure there
are no "leftover follicles" from previous
cycles.
- Antibiotics
will be used to treat infections in the male and female.
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