1. Some anti-anxiety medications. Antipsychotics. Some antiseizure drugs. Parkinson’s disease medications. Diuretics (“water pills”) Antihistamines. Methadone. Antinausea medications. Medications that Can Affect a Pregnancy Test Fertility drugs containing the hormone hCG (human chorionic gonadotropin) such as Pregnyl®, Ovitrelle® and Predalon® can give you a false positive result. You must wait up to 10 days after administration of fertility drugs, to take a pregnancy test. “False positive pregnancy tests are rare and occur less than 1 percent of the time,” confirms DuMontier. Generally speaking, there will be a contributing factor if you’re seeing a false positive pregnancy test. If not, you can assume the test you’ve used is faulty in some way.
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What medications affect hCG levels?
Medications that could affect your test include benzodiazepines, phenothiazine, promethazine and others. Urine contaminated with blood or protein can also trigger a false positive.
What causes hCG levels to rise if not pregnant?
Although the most common cause of an elevated HCG level in females is pregnancy, occasionally, a HCG-secreting tumor is suspected and other conditions such as gestational trophoblastic disease (GTD), nontrophoblastic neoplasms, or a pituitary source of HCG, must be considered.
What can interfere with a pregnancy test?
Home pregnancy tests work by detecting the presence of human chorionic gonadotropin (hCG) in a urine sample. There are a few things that can cause a false negative reading, namely the improper use of the test, testing too early, using an expired test, or diluting the urine by drinking too much water in advance.
How common are false positive pregnancy tests?
The good news for prospective testers is that the chances of a false positive pregnancy test are very low. So just how common are false positive pregnancy tests then? “False positive pregnancy tests are rare and occur less than 1 percent of the time,” confirms DuMontier.
What drugs can cause a false positive pregnancy test?
Illegal drugs – such as amphetamine, MDMA (ecstasy), marijuana, cocaine etc. Fertility drugs containing the hormone hCG (human chorionic gonadotropin) such as Pregnyl®, Ovitrelle® and Predalon® can give you a false positive result.
Can medications affect pregnancy test results?
How Medications Can Effect Pregnancy Test Results. Fertility treatments may lead to a false positive reading. Home pregnancy tests work by detecting the presence of human chorionic gonadotropin (hCG) in a urine sample.
How common are false positive results on pregnancy tests?
False positive results are uncommon on pregnancy tests; false negatives are much more common. Certain medications can cause a false positive result on blood test or home pregnancy tests. Pregnancy tests measure levels of human chorionic gonadotropin (hCG) in the blood or urine.
Can birth control cause a negative pregnancy test?
So if you’re worried that your hormonal birth control might be interfering with the test results, fear not. Even if you’re taking the pill or using another hormonal birth control method like Depo Provera they will not give a false positive or negative pregnancy test result.
