Additional information
| Water Retention | Minimal |
|---|---|
| Hepatotoxicity | Low risk |
| Lab Test | Hormone levels measurement |
| Also known as | LNG |
| Blood pressure | Can cause slight increase in some users |
| Trade name | Plan B, Mirena, Skyla, among others |
| Storage conditions | Store at room temperature away from moisture and heat |
| Chemical name | (17О±)-13-Ethyl-17-hydroxy-18,19-dinorpregn-4-en-20-yn-3-one |
| Formula | C21H28O2 |
| Substance class | Synthetic progestogen |
| Main action | Contraceptive hormone |
| Half-life | 24 to 32 hours |
| Dosage (medical) | Varies by form – 1.5 mg single dose for emergency contraception, smaller doses in combined oral contraceptives |
| Dosage (sports) | Not applicable |
| Effects | Prevents ovulation, thickens cervical mucus, thins the endometrium |
| Side effects | Weight gain, headaches, mood changes, breast tenderness, menstrual irregularities |
| Use in sports | Not commonly used in sports contexts |
| Manufacturer | Nicholas Piramal |
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