Upper Abdominal Pain at 31 Weeks Pregnant: Concerns and Medication Safety

Abdominal pain in the upper region at 31 weeks of pregnancy?

Hello Doctor, yesterday morning I experienced upper abdominal pain.
I am currently 31 weeks pregnant.
I went to the hospital for an examination, and the doctor said I have mild uterine contractions.
I also have a cold, and the upper abdominal pain feels very much like stomach pain, making it difficult to distinguish between contractions and stomach pain.
The doctor prescribed hyoscyamine 0.125 mg (Hyoscyamine Sulfate) for me.
I looked it up online and found that it is classified as a Category C medication, which does not specify that it is safe for pregnant women.
I also took acetaminophen 500 mg (Tylenol), which is labeled as safe.
I took two of each medication.
Since this is my first pregnancy, I don't have much experience.
Although the medication was prescribed by an obstetrician, I am worried about its effects on the baby.
After taking the medication, I noticed that fetal movements were particularly prolonged that evening.
Could you please tell me if these medications will have any impact on the baby? Additionally, the doctor also prescribed me a medication called Anbao (Dydrogesterone) for backup, mentioning that its side effects could include palpitations and tremors, and that I should only take it if necessary.
My main concern now is whether the two medications I have already taken will affect the baby.

Miss Hsieh, 30~39 year old female. Ask Date: 2020/12/24

Dr. Zhang Kunmin reply Obstetrics and Gynecology

Hello, the medications classified as Category C for pregnancy are generally used based on clinical judgment that the potential benefits to the fetus outweigh the potential risks.
It is recommended to use these medications under the guidance of a physician and to follow the prenatal check-up schedule to monitor the fetus's condition.
Thank you! Wishing you safety and health.
Dr.
Zhang

Reply Date: 2020/12/24

More Info

Upper abdominal pain during pregnancy, especially at 31 weeks, can be concerning for expectant mothers. It is important to differentiate between the causes of the pain, which may include uterine contractions, gastrointestinal issues, or other pregnancy-related changes. In your case, the doctor has indicated that you are experiencing mild contractions, which can be normal as the body prepares for labor. However, it is essential to monitor the situation closely.

Regarding the medications prescribed, hyoscyamine is an anticholinergic medication often used to relieve gastrointestinal discomfort. It is classified as a Category C drug by the FDA, meaning that while animal studies have shown an adverse effect on the fetus, there are no adequate and well-controlled studies in pregnant women. This classification indicates that the potential benefits of the medication may outweigh the risks, but it should be used with caution. Acetaminophen, on the other hand, is generally considered safe during pregnancy when used at recommended doses, as it is classified as Category B, indicating no evidence of risk in humans.

Your concern about the impact of these medications on your baby is valid, especially since you are a first-time mother. It is understandable to feel anxious about the effects of any medication during pregnancy. The fact that you noticed increased fetal movement after taking the medications could be a normal response, as some medications can temporarily stimulate fetal activity. However, if you notice any significant changes in fetal movement patterns, such as decreased movement or unusual behavior, it is crucial to contact your healthcare provider immediately.

In terms of the additional medication, the "安寶安胎藥" (which I assume is a form of tocolytic or medication to prevent premature labor) should only be taken as prescribed. The side effects mentioned, such as palpitations and tremors, are important to consider, and you should discuss any concerns with your doctor before taking it. If you feel that your symptoms are worsening or if you experience any new symptoms, it is essential to seek medical advice promptly.

In summary, while the medications you have taken are generally considered safe when prescribed by a healthcare provider, it is crucial to remain vigilant about any changes in your body or your baby's movements. Regular prenatal check-ups are vital for monitoring both your health and the health of your baby. Always communicate openly with your healthcare provider about any concerns you have regarding medications or symptoms during your pregnancy. They can provide personalized advice and reassurance based on your specific situation.

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