Underlined words or phrases provide
helpful links to information in wikipedia.org
General Pregnancy Information
Fluoxetine has been assigned to pregnancy category C by the FDA. Animal studies have failed to reveal evidence of teratogenicity. In a postmarketing report, outcome data were available for 723 pregnancies, 476 normal live births, 20 premature births, 105 therapeutic abortions, 81 spontaneous abortions, 14 twin pregnancies without malformations, three stillbirths, 14 perinatal major malformations, and 10 postperinatal malformations were reported. Fluoxetine is only recommended for use during pregnancy when benefits outweigh risk.
Specific Pregnancy Information
Neonates exposed to fluoxetine and other SSRIs or SNRIs late in the third trimester have developed complications requiring hospitalization, respiratory support, and tube feeding.
The results of a cohort study indicate that 30% of neonates who had prolonged exposure to SSRIs in utero experience symptoms, in a dose-response manner, of a neonatal abstinence syndrome (e.g., tremor, gastrointestinal or sleep disturbances, hypertonicity, high-pitched cry) after birth. The authors suggest that infants exposed to SSRIs should be closely monitored for a minimum of 48 hours after birth.
Based on the results of a retrospective case-controlled study, the manufacturer states that infants exposed to SSRIs after the 20th week of gestation may have a six-fold higher risk for developing persistent pulmonary hypertension of the newborn (PPHN) compared with infants who had not been exposed. It should be noted that PPHN is associated with significant neonatal morbidity and mortality. However, evidence from additional studies is warranted in order to confirm these findings.
A prospective study compared the outcome of 228 pregnant women taking fluoxetine to 254 pregnant control women. The rates of spontaneous pregnancy loss were 10.5% and 9.1% respectively. The rates of major structural abnormalities were 5.5% and 4.0%. The incidence of three or more minor anomalies was significantly higher in exposed infants (15.5% vs. 6.5%). Infants exposed during the third trimester had high rates of premature delivery, admission to special care nurseries, and poor neonatal adaptation (including respiratory difficulty, cyanosis on feeding and jitteriness). Infants exposed late in gestation had shorter birth lengths and lower birth weights.
One author has pointed out that he feels a problem with the above study was the absence of a relevant control group. Higher rates of perinatal complications, including lower birth weight, neonatal distress and prematurity, have been described in the offspring of mothers with mood and anxiety disorders who did not take any psychotropic drug during pregnancy. Furthermore, he points out that women who continued to take fluoxetine into the third trimester probably had more severe psychiatric illnesses.
Another prospective study of 128 pregnant women exposed to a mean daily dose of 25.8 mg of fluoxetine during the first trimester reported no increase in the frequency of major malformations compared to two groups of control patients. (One control group received tricyclic antidepressants. The other control group received nonteratogens.) However, women exposed to fluoxetine and tricyclic antidepressants did demonstrate an increased frequency of miscarriage (13.5% and 12.2% compared to 6.8% in women exposed to nonteratogens.)
One last prospective study compared rates of neonatal complications from 112 pregnant women taking fluoxetine and the 115 infants they delivered to the National Hospital Discharge Survey. The study concluded it was unlikely that maternal fluoxetine use during the third trimester results in significant postnatal complications.
The FDA-assigned pregnancy categories as used in the Drug Formulary
are as follows:
Category A
Adequate and well-controlled studies have failed to demonstrate a risk
to the fetus in the first trimester of pregnancy (and there is no evidence
of risk in later trimesters).
Category B
Animal reproduction studies have failed to demonstrate a risk to the
fetus and there are no adequate and well-controlled studies in pregnant
women.
Category C
Animal reproduction studies have shown an adverse effect on the fetus
and there are no adequate and well-controlled studies in humans, but
potential benefits may warrant use of the drug in pregnant women
despite potential risks.
Category D
There is positive evidence of human fetal risk based on adverse
reaction data from investigational or marketing experience or studies
in humans, but potential benefits may warrant use of the drug in
pregnant women despite potential risks.
Category X
Studies in animals or humans have demonstrated fetal abnormalities
and/or there is positive evidence of human fetal risk based on adverse
reaction data from investigational or marketing experience, and the
risks involved in use of the drug in pregnant women clearly outweigh
potential benefits.
To add a User Review fill out the fields below. A drug name is required to post. You will be asked to enter the dosage, which is listed on the bottle/container, along with units such as mg, ounces, etc; as well as how often you take the drug. When you enter a possible side effect, you will be asked about its severity. In the comment field, please describe your experiences or any comment that you will think help other users understand what they can expect from their drug treatment. We also welcome comments and suggestions about our site through
feedback.
* Enter drug name- enter one
drug at a time, by typing at least 3 letters of the drug name and select the appropriate drug from
the list, then proceed to entering the next drug.
* Enter condition name - the "condition" is the reason you are taking the drug, which could be a disease such as "diabetes" or a symptom such as "joint aches". Enter a condition and select from the list shown, then enter the next condition if you are experiencing more than one.
* Enter side effects
- these are any undesirable effects you might be experiencing from the drug(s). Enter your side
effect and select from the list shown, then enter the next side effect if you are experiencing
more than one. If you are not experiencing any side effects check the box below, No Side Effects.
Please indicate, on the scale of 1 to 5 below, where 1 is the weakest and 5 is the strongest,
the amount of discomfort or impact this side effect is having on you.
OR
Enter comments - tell the community about your experiences and any information you may have about taking these drugs.
NOTE: Just because a drug or combination of drugs can cause a
symptom does not mean it is actually causing your symptom. Symptoms can be caused by
medical conditions as well. Make sure that your physician is aware of any symptoms you
are experiencing so he/she can work with you to determine the cause. Please DO NOT STOP
MEDICATIONS without first consulting a physician since doing so could be hazardous to
your health.
DISCLAIMER: Please note that the information DoubleCheckMD.com provides is intended
to help individuals to work with their medical professionals and is for educational purposes
only. It does not constitute medical or healthcare advice and serves to supplement, not
substitute for, the expertise and judgment of a healthcare professional. In all cases
individuals should consult with a physician before taking any action based on DoubleCheckMD
feedback including, but not limited to ceasing taking any drug, changing diet or commencing or
discontinuing any course of treatment. The information provided by DoubleCheckMD.com is not
intended to cover all possible uses, directions, precautions, drug interactions or adverse
effects, nor should it be construed to indicate that the use of a particular drug is safe,
appropriate or effective.