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Pregnancy, breastfeeding and fertility while taking tamsulosin - Brand names: Contiflo XL, Faramsil MR, Flomaxtra XL, Pamsvax XL, Tabphyn MR

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.

Non-urgent advice: Tell your doctor if you're:

  • trying to get pregnant
  • pregnant
  • breastfeeding

Find out more about how tamsulosin can affect you and your baby during pregnancy on the Best Use of Medicines in Pregnancy (BUMPS) website.

Page last reviewed: 2 February 2023
Next review due: 2 February 2026