Nina Birth Control: Effectiveness, Side Effects, and Usage

Q: Nina Birth Control: Effectiveness, Side Effects, and Usage

Hello, Xiao Bao： The mechanism of birth control pills is to suppress ovulation. <br>However, if the pills are not taken on time, the ovulation mechanism cannot automatically resume and is no longer under the control of the birth control pills. <br>This can lead to situations wher

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Hello Doctor: I started taking the Nina contraceptive pill on the fifth day of my menstrual cycle, June 21.
I took it before bed and experienced vomiting from the morning until noon the next day.
On June 23, I visited a doctor who prescribed anti-nausea medication for a week and advised me to continue taking the Nina contraceptive pill.
He mentioned that I do not need to take the missed pill from June 22, stating that it would not affect the contraceptive effectiveness.
Is this correct? Do I need to take it? Also, does taking the contraceptive pill from the first day provide immediate contraceptive protection? If not, how many days of use are required for it to be effective? I read online that the Nina contraceptive pill may not be effective for contraception; is this true? The doctor told me that the body would adapt to the contraceptive pill after some time, which is why he advised me to take it alongside the anti-nausea medication.
Is this accurate, or should I consider switching to a different contraceptive pill?

Xiao Bao, 20~29 year old female. Ask Date: 2006/06/23

Dr. Zhong Wenzhen reply Obstetrics and Gynecology

Hello, Xiao Bao: The mechanism of birth control pills is to suppress ovulation.
However, if the pills are not taken on time, the ovulation mechanism cannot automatically resume and is no longer under the control of the birth control pills.
This can lead to situations where a person misses taking the pills for two or three days, and after finishing a pack, they may still become pregnant.
Therefore, it is essential to take the medication on schedule.
Issues with adaptation cannot be predicted; if one truly cannot adapt, it may be necessary to switch to a different medication.
Wishing you all the best.

Reply Date: 2006/06/23

More Info

When it comes to understanding the effectiveness, side effects, and usage of Nina birth control pills, it's important to consider several factors that can influence their efficacy and your overall experience with them.

First, let's address the effectiveness of Nina birth control pills. Generally, combined oral contraceptives, like Nina, are about 91-99% effective when taken correctly. This means that if you take the pill consistently at the same time every day, your chances of becoming pregnant are significantly reduced. However, if you miss a pill or take it irregularly, the effectiveness can decrease. In your case, since you experienced vomiting shortly after taking the pill, it is crucial to understand how that affects its efficacy. If you vomit within two hours of taking the pill, it may not have been absorbed into your system, and you might need to take an additional pill. However, since your doctor advised you that missing the pill on June 22 would not affect your contraceptive protection, it is likely that they assessed your situation based on the timing and your overall health.

Regarding when the pill becomes effective, it typically takes about 7 days for the contraceptive effects to kick in if you start taking it during the first five days of your menstrual cycle. Since you began taking Nina on the fifth day of your period, you should be protected from pregnancy after a week of consistent use. If you started taking the pill at a different time in your cycle, it might take longer to achieve full contraceptive protection.

As for the concerns about the pill not being effective, it's essential to differentiate between anecdotal experiences and clinical evidence. While some individuals may experience side effects or may not find the pill suitable for their bodies, Nina and other similar contraceptives have been proven effective for many users. If you continue to experience side effects like nausea or vomiting, it may be worth discussing with your healthcare provider whether a different formulation or method of contraception might be more suitable for you.

Your doctor mentioned that your body would likely adapt to the pill over time, which is a common experience for many users. Initial side effects, such as nausea, headaches, or mood changes, often subside after a few months as your body adjusts to the hormones. However, if the side effects persist or worsen, it is advisable to consult your healthcare provider about possibly switching to another type of birth control.

In summary, based on your situation:
1. If you vomited within two hours of taking the pill, you may need to take another one. However, since your doctor indicated that missing the June 22 pill would not affect your protection, it seems they believe you are still covered.

2. You should expect the pill to be effective after seven days of consistent use, given that you started it correctly.

3. If side effects continue, consider discussing alternative options with your healthcare provider.

Always remember that open communication with your healthcare provider is key to finding the right contraceptive method for you and ensuring your reproductive health is managed effectively.

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