Is Mesalamine safe during pregnancy for ulcerative colitis?

Question

Hello doctor,

My sister is 26 and was diagnosed with ulcerative colitis last year. She is currently taking Pentasa and is doing mostly fine, but recently she noticed mild blood again in her stool for a few days.

Could this mean a new flare is starting, or could occasional bleeding occur even during remission?

Also, she is planning to become pregnant in the next year. Are medicines like Mesalamine safe during pregnancy, or should they be stopped earlier?

Kindly suggest.

Answer 1

Hello,

Welcome to icliniq.com.

I understand your concern.

Your sister has ulcerative colitis, a condition that can go through periods of remission and occasional flare-ups. Seeing mild blood in the stool for a few days can sometimes indicate early inflammation or a mild flare, especially if accompanied by increased stool frequency, urgency, or abdominal cramps.

However, small amounts of bleeding may occasionally occur from local irritation, hemorrhoids, or minor rectal inflammation, even when the disease is mostly controlled.

If the bleeding persists for more than a few days or her symptoms worsen, she should contact her gastroenterologist so treatment can be adjusted early.

Regarding pregnancy, it is generally recommended that women with ulcerative colitis try to conceive while the disease is in stable remission, as this improves outcomes for both mother and baby.

Medicines containing Mesalamine, such as Pentasa, are considered among the safest treatments during pregnancy and are commonly continued.

Stopping these medications without medical advice can actually increase the risk of a flare, which is usually more harmful than the medication itself.

Most guidelines encourage women to continue maintenance therapy, monitor disease activity, and coordinate care between their gastroenterologist and obstetrician.

If symptoms change or bleeding increases, her doctor may check inflammatory markers or adjust treatment. With good disease control and proper follow-up, many women with ulcerative colitis have healthy pregnancies and deliveries.

I hope this helps.

For more queries, feel free to reach out to me anytime.

Thank you.