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Can medication affect a pregnancy test?

topamax, geodon and intuniv
The standard pregnancy test that you would buy at the grocery store measures of hormone called beta human chorionic gonadotropin or hCG for short. This is a hormone that is released from a fertilized ovum after conception. The purpose of the hormone is to signal a structure called the corpus luteum in the ovaries which tells the body the pregnancy has been achieved. As this hormone circulates through the woman's blood it gets excreted into the urine which can be detected using a pregnancy test. There are no medications to my knowledge that mimic this hormone or affect its detection. Thus the medications that you list here should not affect the pregnancy test. Pregnancy tests tend to be very accurate especially when done properly. However there is nothing more accurate than a serum hCG test which can be done in an OB/GYN's office. If you believe you are pregnant but have had a negative home urine pregnancy test, then I would suggest that you schedule an appointment with your OB/GYN. They will start by repeating the urine test which is the most simple way to check to see if you're pregnant. This will be followed by a serum pregnancy test of the urine test is negative. I will say that the medications you are on may not be especially safe during pregnancy and you should consult your OB/GYN about which medications you might need to stop if you do get pregnant and plan on keeping a pregnancy.
This answer is for general informational purposes only and is not a substitute for professional medical advice.
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