Birth Control Interactions and Vaginal Infections

Interactions between contraceptive pills and other medications, as well as issues related to vaginal inflammation?

Hello, doctor.

1.
What is the difference in effectiveness between different dosages of emergency contraceptive pills? Which one is more effective?
2.
I have recently been diagnosed with vaginal inflammation, and my doctor prescribed Nyatatin and metronidazole.
Will these medications affect the effectiveness of my contraceptive?
3.
Generally speaking, do weight loss pills and breast enhancement pills affect contraceptive effectiveness?
4.
Is it safe to take vitamin C? I have seen some responses suggesting it may increase side effects or affect contraceptive effectiveness.
5.
Can vaginal inflammation be transmitted to my boyfriend? He mentioned experiencing itching on his foreskin and has three red spots on his glans.
Does he need to see a doctor or take any action?
6.
The ingredients of the weight loss pills are as follows: 1.
Natural brewer's yeast powder (containing B vitamins), Irish sea magnesium, cranberry powder (cranberry concentrate, citric acid, red beet juice, sugar, maltodextrin), L-arginine, extract of red bean seed coat from Hokkaido, Japan (red bean water, dextrin), patented ferrous glycine (ferrous glycine, citric acid, maltodextrin, silicon dioxide), patented lychee polyphenol extract, patented chromium picolinate, magnesium stearate, microcrystalline cellulose, maltodextrin; 2.
D-sorbitol liquid 70% (sweetener), apple concentrate, green plum concentrate, pomegranate concentrate, inulin (chicory fiber), acacia extract, corn syrup, patented green coffee extract (France), patented complex plant extracts (soybean, acacia, gum arabic, pomegranate, β-carotene, spirulina), patented garcinia cambogia extract, patented soybean extract (containing α-GPC), branched-chain amino acids (L-leucine, L-isoleucine, L-α-amino isobutyric acid); 3.
Chili (capsaicin, β-carotene, niacin, amino acids), chitosan, guarana extract, garcinia cambogia extract, citrus polyphenols (blood orange, grapefruit, orange), fennel, fenugreek seeds, cassia seeds, alginic acid, vitamin B.

Thank you for your help!

Li, 10~19 year old female. Ask Date: 2020/08/02

Dr. Huang Zifei reply Obstetrics and Gynecology

Dear Li,
Thank you for your detailed inquiry.
Here are the answers to your questions in bullet points:
1.
Currently, there are first to fourth generation contraceptive pills, and generally, the side effects decrease with each subsequent generation.
When taken at the appropriate dosage and on schedule, they are suitable for contraception.
2.
Cold medications, antibiotics, and psychiatric medications can affect the efficacy of contraceptive pills.
For effective contraception, it is advisable to use dual methods: oral contraceptives along with condoms.
3.
There is a possibility of impact.
4.
Vitamin C can be taken.
5.
Vaginal inflammation may also be transmitted by your boyfriend.
If he has symptoms, it is recommended that he consult a urologist.
6.
Weight loss medications contain various ingredients that may affect the metabolism of contraceptive pills.
If concerned, it is advisable to use dual contraception, combining oral contraceptives with condoms.
Dr.
Huang Zifei, Department of Obstetrics and Gynecology, Nantou Hospital

Reply Date: 2020/08/02

More Info

When it comes to understanding birth control interactions and vaginal infections, there are several important factors to consider. Let's address your questions one by one.

1. Differences in Birth Control Pill Dosage: The effectiveness of birth control pills can vary based on their formulation, which includes the type and dosage of hormones. Generally, combination pills (which contain both estrogen and progestin) are highly effective when taken correctly. Low-dose pills may have fewer side effects but can be less effective in certain individuals, especially those who are overweight or have specific metabolic issues. It's essential to consult with your healthcare provider to determine which pill is best suited for your individual health needs and lifestyle.

2. Impact of Medications on Birth Control Effectiveness: The medications you mentioned, Nyatatin (an antifungal) and metronidazole (an antibiotic), typically do not affect the effectiveness of hormonal birth control methods. However, some antibiotics can potentially reduce the effectiveness of birth control pills, but metronidazole is not one of them. Always inform your healthcare provider about all medications you are taking to ensure they can provide the best advice.

3. Weight Loss and Breast Enhancement Pills: Many weight loss and breast enhancement supplements can contain ingredients that may interact with hormonal birth control. Some herbal supplements can affect liver enzymes that metabolize hormones, potentially reducing the effectiveness of birth control. It’s crucial to discuss any supplements you are considering with your healthcare provider to evaluate their safety and potential interactions.

4. Vitamin C and Birth Control: Vitamin C is generally considered safe to take with birth control pills and does not affect their effectiveness. However, high doses of vitamin C can sometimes lead to gastrointestinal side effects. It's always best to stick to recommended dietary allowances unless otherwise directed by a healthcare professional.

5. Vaginal Infections and Transmission: Vaginal infections can sometimes be transmitted to a partner, especially if the infection is caused by a sexually transmitted infection (STI). If your boyfriend is experiencing symptoms such as itching and red spots on the glans, it is advisable for him to seek medical attention. This could indicate a possible infection that may require treatment. Open communication with your partner about symptoms and seeking medical advice together can help manage any potential health issues.

6. Ingredients in Weight Loss Supplements: The ingredients you listed in your weight loss supplement are quite extensive. Many of these components, such as cranberry extract and various herbal extracts, are generally safe but can have varying effects on individuals. Some ingredients may interact with medications or have side effects. It’s best to consult with a healthcare provider who can assess the specific ingredients and their potential interactions with your birth control method.

In summary, while many factors can influence the effectiveness of birth control and the risk of infections, open communication with your healthcare provider is key. They can provide personalized advice based on your health history and current medications. Always prioritize safe practices, including regular check-ups and discussions about any new symptoms or concerns with your healthcare provider. This proactive approach will help ensure your reproductive health is well-managed.

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