- What is acetaminophen?
- Is acetaminophen safe during pregnancy?
- Can acetaminophen cause miscarriage or birth loss?
- Acetaminophen dosage during pregnancy
- Other concerns of acetaminophen during pregnancy
Among the over-the-counter (OTC) medications used during pregnancy, acetaminophen is perhaps the most common one. About 40 – 60% of the pregnant population uses this medicine at some point during the pregnancy, for relief from fever and headache (1).
What Is Acetaminophen?
Acetaminophen, commonly known as paracetamol, is an OTC medicine sold under the brand name Tylenol. It comes under FDA category B and is generally prescribed for relief from fever and pain during pregnancy (2). In the early stages of pregnancy, a temperature of 101 °F (38.3 °C) can pose risks to the baby (3).
When it comes to taking medicines during pregnancy, you need to be cautious and well-informed about the medicine.
Is Acetaminophen Safe During Pregnancy?
Acetaminophen is believed to be the safest antipyretic and analgesic medicine for treating fever in pregnant women and is recommended for short-term use.
However, do not take more than the recommended dosage of acetaminophen. Some studies have asserted that women who take acetaminophen for more than 20 weeks, and in more than one trimester, may have children with behavioral problems (3).
A study on the link between attention-deficit/hyperactivity disorder (ADHD) and acetaminophen use during pregnancy suggested that short-term use of prenatal acetaminophen mitigated the risks of the ADHD-like behavioral problems in developing children (4).
A Norwegian study, Prenatal Exposure to Acetaminophen and Risk of ADHD, found that the risk of this disorder increases with prolonged exposure to this medicine. The study also enunciated that women who took prenatal acetaminophen for 22 to 28 days were six times more at the risk of having children with ADHD. Other findings stated that fathers who took acetaminophen for more than 29 days before conception, were two times more likely to have children with ADHD (5).
Can acetaminophen cause miscarriage or birth loss?
As long as the dose of acetaminophen taken during pregnancy does not exceed the recommended quantity, the chances of miscarriage or birth loss are rare.
The medicine needs to be taken in the right dosage to avoid any complications during pregnancy. Find out more about the dosages next.
How Much Acetaminophen Should You Take During Pregnancy?
The maximum recommended dose of acetaminophen is 4gm per day. In the case of pregnant women with hepatitis A, B, or C, the recommended dose of acetaminophen is not more than 2 gm (500 mg tablet taken four times a day) a day.
An excess intake of this medicine can cause liver damage, kidney damage, or anemia in pregnant women, along with certain health issues in babies. Since acetaminophen comes in combination with various other compounds, it is best to check the composition of the medicine before use.
Talk to your doctor before taking the medication to ensure that you are taking the right amount of dose (6). Also, ensure that the other ingredients are safe to use during pregnancy.
Note: If you have any underlying medical issues such as cirrhosis (a severe liver disease), then talk to the doctor before taking acetaminophen. A combination of acetaminophen and hydrocodone (narcotic) should not be taken during pregnancy, as it can lead to withdrawal symptoms in the baby after they are born, which can be life-threatening in some cases. The medicines can also pass into the breast milk and harm the baby (7).
If the doctor prescribes acetaminophen, ensure you take no more than the recommended dosage to avoid complications, which we talk about next.
Other Concerns Related To Acetaminophen Intake During Pregnancy
Prenatal acetaminophen administration for over 28 days has also been associated with:
- Lower performance intelligence quotient (IQ)
- Shorter male infant anogenital distance (predicting poor male reproductive potential). It is also called Cryptorchidism, wherein the male testes in newborns do not descend properly into the scrotal sac (8, 9).
- Neurodevelopmental problems (communication, gross motor development)
- Autism spectrum disorder
- Delayed language skills.
According to the research data provided by the Swedish Environmental Longitudinal, Mother and Child, Asthma and Allergy study (SELMA), a delay in language development was evident in children at 30 months of age. In this study, 754 women were enrolled and were asked to account the number of tablets of acetaminophen they have taken during eight to thirteen weeks of pregnancy.
The investigation was followed by a urine test to determine the concentration of acetaminophen in the sample. It was found that language delay was greater in boys (12.6%) than in girls (4.1%). However, mothers with exposure to a higher dosage of acetaminophen in the early stages of pregnancy were reported to have girls and not boys with greater language delay (10).
Therefore, it is recommended to take low dosages of acetaminophen for a short period during pregnancy. Moreover, take it only after consulting your doctor, and when it is the only safe medication for relief from pain or fever. Though complications due to use of acetaminophen are rare, the doctors should provide information about the drug before prescribing it to you (11). Also, always check the composition of the medicine to ensure it is safe for you and the baby.
Did you take acetaminophen during your pregnancy? Share your experience with us in the comment section below.
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