May not be as effective when taken
May delay return of normal
If used in early breast-feeding, may reduce milk
Pills must be taken every day.
Patches may not
fully protect you from pregnancy if they are exposed to direct sun or high
heat. This can release a high dose of hormone from the patch, which leaves less
for the patch to release later in the week.
Patches deliver more estrogen than low-dose birth control
pills do. Some research has found that women using the patch are more likely to
get dangerous blood clots in the legs and lungs. The risk may be higher if you
smoke or have certain health problems. The U.S. Food and Drug Administration
(FDA) suggests that you talk to your doctor about your risks before using the