It is well-known that not only estradiol absorbed more efficiently via sublingual (it also absorbs thru the cheeks so don't worry if some escapes) but also other pills should be administered sublingual. I know xanax works faster if kept under the toungue, which is important because panic attacks suck so you want to get relief asap. My doctor told me to do this if I am having a really bad one but I havent had a single one since transition. It is also easier on the liver if taken under the toungue. (though 17-b E is pretty easy on the liver in general). As far as patches, they are used more for over 40 women and women with DVT issues. The injection v. pill debate will never be solved but I do hear circumstantial evidence injections cause better
results.It could all be coincidence. Pills are fine.
Here is a study on just this (Dosages removed please PM if I miss one which I won't):
AbstractOBJECTIVE:
To investigate the pharmacokinetic profiles of different doses of micronized 17 beta-estradiol administered by oral or sublingual routes.
METHODS:
Single doses of micronized 17 beta-estradiol were administered orally or sublingually to six postmenopausal women in a randomized clinical trial. We calculated pharmacokinetic parameters for estradiol (E2) and estrone (E1) of maximum serum concentration, time to maximum serum concentration, terminal half-life, area under the concentration curve, and oral clearance. Serum levels of E1 sulfate also were compared at 4, 12, and 24 hours after dosing.
RESULTS:
Sublingual administration resulted in rapid absorption with significantly higher E2 levels than did comparable oral dosing. Estrone levels did not vary with route of administration but correlated with the dosage administered. Estrone sulfate levels correlated with the dosage administered and also tended to be higher with sublingual administration. Sublingual administration resulted in a significantly lower E1 to E2 ratio during the 24 hours than did oral administration.
CONCLUSION:
Sublingual administration of micronized 17 beta-estradiol results in a rapid, burst-like absorption into the systemic circulation, yielding high E2 levels that fall rapidly over the first 6 hours.