Blood Home > Innohep and Breastfeeding

Because it is not known if Innohep (tinzaparin sodium) passes through breast milk in humans, the manufacturer recommends that women use this medication with caution while breastfeeding. Innohep is known to pass through breast milk in rats, so it could pass through human breast milk too. Before nursing, talk to your healthcare provider about the risks and benefits.

Is Innohep Safe for Breastfeeding Women?

At this time, it is unknown if Innohep® (tinzaparin sodium) passes through breast milk in humans. The manufacturer recommends that breastfeeding women use this medication with caution. However, this and other similar low-molecular-weight heparin medications are generally considered safe for use while breastfeeding.

More Information on Breastfeeding and Innohep

Innohep passes through breast milk in rats in very low amounts. It is unknown if the same is true for humans. The small amounts of Innohep that might make it through breast milk would most likely be inactivated in the digestive tract of the infant, which is why the drug cannot be taken by mouth.
Most sources consider low-molecular-weight heparins -- like Innohep -- to be compatible with breastfeeding. These medications are commonly given to women who used the drug during pregnancy for a time after giving birth, since women are at a high risk for clots after delivery. No special precautions or monitoring of the infant is recommended.

Talking With Your Healthcare Provider

You should discuss breastfeeding and Innohep with your healthcare provider. Each woman's situation is different, and you and your healthcare provider understand your situation best. After considering what you want and expect, as well as your current health situation, the two of you can make a shared decision that is right for you.
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
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