Slowbear-
I copied this from drugstore.com - there are different types of pills-
monophasic being the one most prescribed in peri I think. They have the same amounts of ethinyl estrogen and progestin everyday for 21 or 24 days and then the placebo pills. Supposedly they help with fluctuating hormones. I just started taking Yaz, which is monophasic. After two weeks, I don't feel better and even more depressed. No idea if its the pill.
I think it depends what you are taking the pill for. I think its better for bleeding issues than mood issues (anxiety depression) but some women like it. I'm trying to decide whether to stick it out the full month as I don't feel mentally better at all.
This is the article, there are also other sites that describe the specific pills and I'll try to look them up for you -
I have called the companies that make the pills to get info and they are useless. They will not tell you about using the pill for peri symptoms, only birth control.
See article below.
What are the differences among monophasic, biphasic, and triphasic birth control pills?
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Birth control pills are one of the most popular and effective forms of birth control. Your doctor can choose from more than 30 different formulations, with different combinations or amounts of hormones.
Most birth control pills contain the hormones estrogen and progestin. They are categorized as monophasic, biphasic, or triphasic pills depending on whether the level of hormones stays the same during the first three weeks of the menstrual cycle or changes. (Pills for the fourth week, if they are included, are usually sugar pills that contain no medicine.)
Monophasic pills contain the same amount of estrogen and progestin in all of the active pills in a pack. Examples of monophasic pills include Ortho-Novum 1/35, Demulen 1/35, Lo-Ovral, Ortho-Cyclen, Loestrin, Alesse, Apri and Ortho-Cept. Because of the uniform hormone level in all the pills, monophasics are least likely to cause side effects, such as mood changes, that can result from fluctuating hormone levels in the body.
Biphasic and triphasic pills contain different dosages of progestin or estrogen throughout the pill pack. Compared with monophasics, these pills reduce the total hormone dosage a woman receives and are thought to better match the body’s natural menstrual cycle. Biphasic pills change the level of hormones once during the menstrual cycle. Examples of biphasic pills include Ortho-Novum 10/11, Mircette and Necon 10/11.
Triphasic pills contain three different doses of hormones in the active pills (changing every seven days during the first three weeks of pills). Triphasic pills include Ortho-Novum 7/7/7, Ortho Tri-Cyclen, Triphasil, Tri-Levlen, and Tri-Norinyl.
Despite the differences, no single pill or pill type rates as the "best" one. Experts consider all combination pills equally effective in preventing pregnancy, provided the pills are used appropriately. Your doctor can help you choose a pill based on your age, medical history, and lifestyle, and cost.
Slowbear-
You can also check out the site below- they give you the dosages of the various bcps. Hope you have better luck than I have.
http://www.wdxcyber.com/ncontr13.htmLidge