
How Oral Contraceptive Pills Prevent Pregnancy: Understanding Choice Daily
December 01, 2025
Oral contraceptive pills (OCPs) are among the most trusted and widely used methods of pregnancy prevention. They use synthetic versions of natural female hormones to safely regulate the menstrual cycle. Choice Daily is a combined oral contraceptive pill formulated with:
a. Levonorgestrel 0.15 mg (a progestin)
b. Ethinyl estradiol (a synthetic estrogen)
c. Elemental iron 24 mg — included to help maintain healthy iron levels during menstruation
This article explains how Choice Daily prevents pregnancy, how each ingredient works, and the added health benefits of combined oral contraceptive pills.
1. Major Ingredients in Choice Daily
1. Levonorgestrel (Progestin 0.15 mg)
Levonorgestrel is a synthetic form of the natural hormone progesterone. It plays a major role in:
- Preventing ovulation
- Thickening cervical mucus
- Supporting contraceptive reliability
2. Ethinyl Estradiol (Estrogen)
Ethinyl estradiol is a widely used synthetic estrogen. In combination pills, it helps:
- Stabilize the menstrual cycle
- Prevent the hormonal surge that triggers ovulation
- Improve overall contraceptive effectiveness
3. Elemental Iron (24 mg)
Many combination pills include iron tablets to support women’s health during menstruation.
Iron helps:
- Maintain healthy iron stores
- Reduce the risk of iron deficiency
- Support energy and wellness
Iron does not affect pregnancy prevention; it supports general health during the cycle.
2. How Choice Daily Prevents Pregnancy
Combined oral contraceptive pills prevent pregnancy through three scientifically proven mechanisms:
A. Prevention of Ovulation (Primary Mechanism)
Choice Daily prevents pregnancy mainly by stopping ovulation.
The combination of estrogen and progestin sends feedback signals to the brain, preventing the release of hormones required for ovulation:
- FSH (Follicle-Stimulating Hormone) remains low
- LH (Luteinizing Hormone) does not surge
Without the LH surge, the ovary does not release an egg (meaning fertilization cannot occur).
B. Thickening of Cervical Mucus
Levonorgestrel thickens and makes cervical mucus more viscous, creating a natural barrier.
This helps prevent pregnancy by:
- Making it difficult for sperm to enter the uterus
- Reducing sperm movement
- Lowering the chance of sperm reaching an egg, even if ovulation accidentally occurs
C. Thinning of the Uterine Lining
The hormones in Choice Daily keep the uterine lining thin, which:
- Helps reduce heavy menstrual bleeding
- Makes the endometrium less suitable for implantation
While this is a supportive mechanism, it adds to the overall effectiveness of the contraceptive.
3. Why Iron Is Included in Choice Daily?
Monthly periods may cause iron loss, especially for women with heavier bleeding. Choice Daily includes 24 mg of elemental iron in the placebo tablets to:
- Help maintain healthy iron levels
- Prevent iron deficiency
- Support daily energy and overall wellness
Iron enhances health but does not play a role in contraception.
4. Additional Benefits of Combined Oral Contraceptive Pills
Beyond pregnancy prevention, combined pills like Choice Daily may offer:
- More regular menstrual cycles
- Lighter and shorter periods
- Reduced menstrual cramps
- Improved hormonal balance
- Better overall cycle management
These benefits vary between individuals depending on health and lifestyle.
Choice Daily is a pill with the combination of levonorgestrel, ethinyl estradiol, and iron offers a reliable and well-balanced contraceptive option. It prevents pregnancy through:
- Stopping ovulation
- Thickening cervical mucus
- Maintaining a thinner uterine lining
Meanwhile, the added iron supports women’s overall wellness during menstruation.
By understanding how oral contraceptive pills work, women can make informed decisions about their reproductive health with confidence.
Disclaimer: This article is for educational purposes only and is not a substitute for professional medical advice. Always consult a licensed healthcare provider before starting or changing any oral contraceptive pill, including Choice Daily. If you experience side effects, missed periods, unusual bleeding, or have concerns about contraception or medication interactions, seek medical guidance promptly.
Innovating Healthcare, Transforming Futures:
Nepal Remedies, Your Partner in Hormonal and Steroids Excellence.




