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Q: Questions Related to Pregnancy and My Meds
I am a 25 y/o female with BP I D/O. I take 800mg tid of
Neurontin and
150 mg qd of Zoloft. I am medically compliant and have had no relapse
since first diagnosed 2 years ago. I am thinking of conceiving a child
with my husband, but do not want to be on meds while pregnant. I also
would like to breast feed. I am very in-tuned with my body and alert my
doctor right away if I am feeling hypomanic (has only happened once, and with
the addition of 25 mg Benadryl qhs x one week, I was fine.)My psychiatrist
states that my drugs are class C; I am advised to take them, as the benefit
outweighs the risk. I work in pediatric rehab, and most of my clientele have PDD,
or Autism. My questions are: 1) What are the teratogenic effects of my
meds on a developing fetus 2) Are there any studies on children (not infants)
whose mothers took my meds while pregnant? 3)Is there a correlation between
children with an Autistic Spectrum diagnosis and a bipolar parent? 4) What is
the rate of a puerperal incident in mothers who are not medicated during
pregnancy? Thank you so much for your time. I know I asked many
questions. I want to prevent any possible disorders/ diseases in my future
children. I am so scared that I will cause them to be less than healthy.
I am seriously considering adoption. I do realize that a majority of
my anxiety exists because the children I am exposed to on a daily basis are all
special-needs.
Dear Ms. M' --
That was a well written question. You probably also understand
from your work that this kind of thing is often addressed by a specialist, a
genetic risk counselor. It would be nice to find such a person who was
really knowledgeable about these particular medications -- better yet to have a
psychiatrist who had that knowledge. In my area there are a few
psychiatrists who have trained themselves particularly on issues such as this (I
have not). Getting a consultation from such a person would be
ideal.
In the interim, I'll take a stab at the parts of your
question I have some confidence to address. In case somebody's reading who
hasn't read up on pregnancy safety categories like you:
Category A: Controlled human studies have
demonstrated no fetal risk
Category B: Animal studies indicate no fetal risk, but no human studies
OR adverse effects in animals , but not in well-controlled human studies
Category C: No adequate human or animal studies.OR adverse fetal effects
in animal studies, but no available human data.
Category D:Evidence of fetal risk, but benefits outweigh risks.
Category X: Evidence of fetal risk. Risks outweigh
any benefits.
First of all, as you know, Category C means "we don't know", not
"it's probably safe". It is dramatically more difficult to
say that a medication is safe (how many cases does one have to have monitored?)
than that a medication is unsafe (where only a few clear-cut cases of an
association could be sufficient to make it category X).
That's how we should look at Neurontin, for example:
close to unknown. In my view there ought to be something more dramatic
than "Category C", for things we know so little about -- like
"Category Z", meaning almost X until we know more.
Zoloft is listed as Category B, which is interesting,
because so is Prozac -- but there is a growing database on Prozac that to my
knowledge is much more extensive so far than Zoloft. In particular, as you
may have learned, Prozac is the only "SRI" antidepressant (to my
knowledge) that meets the test you suggest -- i.e. your question #2. There
was at least one big study:
Kids
exposed to Prozac
that looked at kids exposed to Prozac in utero,
following their development compared to a control group of kids. Note that
we're talking about 50 kids followed until age 7. This study is probably
continuing and if so goes another 4 years -- no big report of new problems
emerging.
There were numerous previous studies that answer the
easier question about kids exposed, and how they looked right after birth (i.e.
more on the subject of malformations than developmental problems), such as this
one:
Prozac
in pregnancy
OK, so question #3 (these keep me on my toes, force me
to go look at the literature again, so don't feel badly for asking): autism and
Bipolar. I keep hearing these two conditions mentioned "in the same
breath" but have never seen some direct evidence linking the two; and when
I took a look around (Pub Med search, "autism bipolar"; Google search;
Dr. Ivan's site) again I find them mentioned close to one another but not
associated to one another as such. You may know more about this one than I
(write me about
that).
Finally, question #4: rate of "puerperal
incident" in mothers -- do you mean with known bipolar disorder? --
unmedicated during pregnancy. There is a considerable literature on
this. Here's an example of one of the more prominent such
studies. In general, the risk of postpartum depression in bipolar
women not on med's is usually quoted as 50%. Here's another good
review, though older.
Whew, that was a good workout. Keep asking good
questions, and good luck with your difficult decision making. .
Dr. Phelps
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