Ortho Evra Heat Precautions
It was already know that Ortho Evra can cause blood clots. Now the maker of the patch is saying that overweight women using the patch are at a particularly high risk of developing blood clots. Janssen-Ortho Inc. (subsidiary of Johnson & Johnson) also warns that women should not expose the Ortho Evra patch to sources of heat such as saunas and whirlpools. The company believes there is a theoretical risk that doing so might cause an unintentional increase in estrogen exposure.
