Comprehensive Guide to Levonorgestrel-Based Morning After Pills

Discover everything you need to know about levonorgestrel-based morning after pills in our comprehensive blog. Learn how emergency contraceptives like Plan B work, how to take them, their effectiveness, and potential side effects. Whether you're in Cebu or anywhere else, find out why Plan B and similar products are trusted options for emergency contraception. We also highlight products such as Plan B One-Step, My Way Emergency Contraceptive, and Xiromed Morning After Pill, all available to support your reproductive health needs.

MORNING AFTER PILL

11/14/20244 min read

When it comes to emergency contraception, one of the most widely recognized solutions is the levonorgestrel-based morning after pill. In this detailed guide, we will explore everything you need to know about this option, its effectiveness, potential side effects, how to take it properly, and how to choose the right product for your needs. We’ll also highlight three popular products available: Plan B One-Step, My Way Emergency Contraceptive, and Xiromed Morning After Pill.

How to Take Levonorgestrel-Based Emergency Contraceptives
  • Timing: For maximum effectiveness, take the pill as soon as possible after unprotected sex. The sooner it is taken, the higher the success rate.

  • Dosage: The typical dose is a single 1.5 mg tablet. Follow the instructions provided with the product.

  • With or Without Food: The pill can be taken with or without food.

What is Levonorgestrel and How Does It Work?

Levonorgestrel is a synthetic hormone that mimics the action of progesterone, a natural hormone found in the body. It primarily prevents pregnancy through the following mechanisms:

  1. Inhibiting Ovulation: The primary function of levonorgestrel is to prevent the release of an egg from the ovary. Without ovulation, there is no egg for sperm to fertilize, thus preventing pregnancy.

  2. Altering Cervical Mucus: Levonorgestrel thickens the cervical mucus, making it more difficult for sperm to travel through the cervix and reach an egg.

  3. Modifying the Uterine Lining: In some cases, levonorgestrel may change the lining of the uterus, making it less suitable for a fertilized egg to implant.


It is important to note that levonorgestrel-based pills do not terminate an existing pregnancy and are not effective if implantation has already occurred.

What to Do After Taking the Pill
  • Rest and Monitor: After taking the pill, it’s advisable to rest and monitor any side effects such as nausea or fatigue.

  • Avoid Unprotected Sex: To prevent further risk of pregnancy, avoid unprotected intercourse until your next period.

  • Track Your Period: Your next period may come earlier or later than expected. Track your cycle and consult a healthcare provider if your period is more than a month late.

  • Pregnancy Test: If your period is delayed by more than a week, take a pregnancy test to confirm the pill's effectiveness.

Contraindications for Levonorgestrel-Based Emergency Contraceptives
  • Known Allergy: Do not take if you are allergic to levonorgestrel.

  • Pregnancy: Not effective if you are already pregnant.

  • Severe Liver Disease: Should not be used by individuals with severe liver problems.

  • Unexplained Vaginal Bleeding: Consult a healthcare provider if you experience unusual bleeding before taking the pill.

Potential Drug Interactions

Certain medications and substances can reduce the effectiveness of levonorgestrel, including:

  • Enzyme Inducers: Medications such as rifampin, barbiturates, and some anticonvulsants (e.g., carbamazepine, phenytoin)

  • St. John’s Wort: An herbal supplement that may decrease the efficacy of emergency contraception.

  • HIV Medications: Some antiretroviral may interfere with the absorption of levonorgestrel.


It’s essential to consult with a healthcare professional if you are taking any of these medications or supplements.

Overdose and Safety
  • Overdose: Taking more than the recommended dose of levonorgestrel does not increase its effectiveness and may lead to increased side effects such as severe nausea or vomiting. If an overdose is suspected, seek medical attention immediately.

  • General Safety: Levonorgestrel is considered safe for most individuals when used as directed. However, it is intended for occasional use and should not replace regular contraceptive methods.

Side Effects and What to Expect

While levonorgestrel-based pills are generally safe, they may come with minor side effects, including:

  • Nausea

  • Fatigue

  • Headache

  • Breast tenderness

  • Spotting between periods

  • Dizziness


These side effects usually does not happen, but if it does, it typically resolve within a few days. Severe side effects are rare but should be reported to a healthcare provider.

Popular Levonorgestrel-Based Products
1. Plan B One-Step

Plan B One-Step is one of the most trusted names in emergency contraception.

  • Dosage: Contains 1.5 mg of levonorgestrel

  • Directions: Take as soon as possible after unprotected intercourse

  • Key Points: Widely available without a prescription and effective within 72 hours.

2. My Way Emergency Contraceptive

My Way offers an affordable alternative with the same active ingredient and dosage as Plan B.

  • Dosage: 1.5 mg of levonorgestrel

  • Directions: Best taken within 72 hours

  • Key Points: Budget-friendly, available over-the-counter, and just as effective when used promptly.

3. Xiromed Morning After Pill

Xiromed is another effective option for those seeking emergency contraception.

  • Dosage: 1.5 mg of levonorgestrel

  • Directions: Should be taken within the 72-hour window

  • Key Points: Reliable and offers a comparable outcome to other brand-name products.

FAQs About Levonorgestrel-Based Emergency Contraceptives

1. Can I use it as regular birth control?
No. While it is safe for occasional use, relying on emergency contraception regularly is not recommended due to decreased effectiveness compared to standard birth control methods.

2. What if I vomit after taking the pill?
If you vomit within two hours of taking the pill, it’s advisable to take another dose.

3. What should I do if my period is late after taking the pill?
If your period is more than a week late, take a pregnancy test and contact your healthcare provider.

Why Choose Our Products?

At Morning After Pill Cebu, we provide reliable, high-quality levonorgestrel-based products, including Plan B One-Step, My Way Emergency Contraceptive, and Xiromed Morning After Pill. Our commitment is to support reproductive health with accessible, affordable, and safe options.

Effectiveness of Levonorgestrel-Based Pills

Timing is crucial when using levonorgestrel-based emergency contraceptives. For optimal effectiveness:

  • Take within 24 hours: Approximately 98% effective

  • Take within 48 hours: Approximately 90% effective

  • Take within 72 hours: Around 85% effective