Birth Control Pill Side Effects: What to Expect - Obstetrics and Gynecology

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What are the side effects of birth control pills?


Hello, I started taking birth control pills for the first time this month from a regular pharmacy.
I heard from the pharmacist that there can be side effects from birth control pills, such as hair loss, acne, or eczema, so I plan to take vitamin supplements alongside them.
I've only been taking them for a few days, but I feel a bit anxious about whether they will have serious health impacts.
How do they compare to emergency contraception in terms of suitability? I bought a pack that contains 42 tablets for two months, named Behope-A Tablets, which contain 1.0 mg of Norethisterone and 0.5 mg of Mestranol per tablet.
Can I take them with peace of mind? Thank you.

Zi Qing, 20~29 year old female. Ask Date: 2001/12/24

Dr. Wei Fumao reply Obstetrics and Gynecology


Currently, the dosage of contraceptive pills is generally lower, but similar side effects as you mentioned may still occur.
However, it is necessary to try them to determine if these side effects will manifest.

Reply Date: 2001/12/24

More Info


When considering the use of birth control pills, it is essential to understand both the potential side effects and the overall safety of these medications. Birth control pills, like the one you mentioned (BEHOPE-A TABLETS), contain hormones that can affect various bodily functions. The active ingredients in your pill, Norethisterone and Mestranol, are synthetic forms of progesterone and estrogen, respectively.
Common side effects associated with hormonal contraceptives include weight gain, mood changes, headaches, nausea, and skin issues such as acne or rashes. Hair loss can also occur, although it is less common. These side effects are typically mild and may diminish after the body adjusts to the hormones, which can take a few months. It's important to note that not everyone experiences these side effects, and many women tolerate birth control pills well.

If you are concerned about the side effects, it may be beneficial to monitor your body's response to the medication over the first few months. If you notice significant or troubling side effects, it is advisable to consult with a healthcare provider. They can help determine whether the birth control pill is the right choice for you or if an alternative method might be more suitable.

In comparison to emergency contraception (commonly referred to as the "morning-after pill"), regular birth control pills are designed for ongoing use to prevent pregnancy, while emergency contraception is intended for occasional use after unprotected intercourse. The morning-after pill is generally safe but is not as effective as regular contraceptive methods when used as a primary form of birth control.
Regarding your specific concerns about health impacts, it is crucial to consider your individual health history. Certain conditions, such as a history of blood clots, liver disease, or certain cancers, may contraindicate the use of hormonal contraceptives. Always discuss your medical history with your healthcare provider before starting any new medication.

In summary, while birth control pills can have side effects, many women find them to be a safe and effective method of contraception. If you experience any adverse effects or have concerns about your health while taking the pill, do not hesitate to reach out to your healthcare provider for guidance. They can provide personalized advice and help you make informed decisions about your reproductive health.

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