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Detailed medicine guidance

Pregnancy, breastfeeding and fertility while taking tamsulosin

NHS medicines information on tamsulosin and whether you can take it while pregnant or breastfeeding.

About this information

This NHS content is written for people in England. Medicine names, availability, prescribing and services may differ in other countries.

Tamsulosin and pregnancy

Tamsulosin is not usually recommended in pregnancy. This is because there is not enough information to say whether it's safe for your baby.

If you're taking tamsulosin and you're pregnant or trying to get pregnant, talk to a doctor about whether it's still right for you.

The doctor will be able to recommend the best treatment for you and your baby.

Tamsulosin and breastfeeding

If your doctor or health visitor says your baby is healthy, it's OK to take tamsulosin while you're breastfeeding, but talk to your doctor or pharmacist first.

It is not known how much tamsulosin gets into breast milk, but it's likely to be a small amount and not enough to cause side effects in your baby. You may be offered a different treatment that we know more about.

If you notice that your baby is not feeding as well as usual, seems unusually sleepy, or looks much paler than usual, or if you have any other concerns about your baby, then talk to your health visitor, midwife, pharmacist or doctor as soon as possible.

Tamsulosin and fertility

Some men report problems when they ejaculate when taking tamsulosin such as little or no semen.

If you or your partner are taking tamsulosin and you're trying for a baby, speak to a doctor.

Meds New IA (H2) - Pregnancy non-urgent care card

Tell your doctor if you're:

  • trying to get pregnant
  • pregnant
  • breastfeeding

View the original NHS website page ↗. Refreshed 19 August 2026.

Licensed under the Open Government Licence v3.0 ↗. MyPHU is independent and is not endorsed by the NHS.

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