Some women take hormones to manage menopause symptoms, and this claim says that a type of estrogen made to match the body’s own (bio-identical estradiol) is safer for blood clots than a different type made from horse urine (conjugated equine estrogens).

Women who take a type of hormone therapy called conjugated equine estrogen are 78% more likely to develop blood clots in their veins than women who take a different type called esterified estrogen.

Taking Premarin for hormone therapy might make you more likely to get dangerous blood clots than taking a different type of estrogen called bio-identical estradiol.

Women who are going through or have passed menopause and are taking a specific type of hormone pill called conjugated equine estrogen are 65% more likely to have their first blood clot in a vein than women who aren’t taking any hormones.

Women who take higher doses of this hormone medicine called conjugated equine estrogen are more likely to develop blood clots in their veins.

If you use a patch or gel for estrogen instead of a pill, and pair it with a specific type of progesterone, you’re not more likely to get dangerous blood clots — but if you take estrogen as a pill with any progesterone, your risk of blood clots doubles compared to not taking any hormones at all.