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PostDay One-Step — Description, Dosage, Side Effects | PillsCard
OTC
PostDay One-Step
1500 mcg, Tabletka
INN: Levonorgestrelum
Data updated: 2026-04-11
Available in:
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Form
Tabletka
Dosage
1500 mcg
Route
—
Storage
Other information • read the instructions, warnings, and enclosed product leaflet before use • this product works mainly by preventing ovulation (egg release). It may also prevent fertilization of a released egg (joining of sperm and egg) or attachment of a fertilized egg to the uterus (implantation). • do not use if carton is open or the blister seal is broken or missing • store at 20-25°C (68° to 77°F)
User Reviews
Reviews reflect personal experiences and are not medical advice. Always consult your doctor.
About This Product
Manufacturer
InPharm Sp. z o.o.
ATC Code
G03AD01
Source
URPL
11 DESCRIPTION Kyleena (levonorgestrel-releasing intrauterine system) contains 19.5 mg of LNG, a progestin, and is intended to provide an initial release rate of approximately17.5 mcg/day of LNG after 24 days. Levonorgestrel USP, (-)-13-Ethyl-17-hydroxy-18,19-dinor-17α-pregn-4-en-20-yn-3-one, the active ingredient in Kyleena, has a molecular weight of 312.4, a molecular formula of C 21 H 28 O 2 , and the following structural formula: 11.1 Kyleena Kyleena consists of a T-shaped polyethylene frame (T-body) with a steroid reservoir (hormone elastomer core) around the vertical stem. The white T-body has a loop at one end of the vertical stem and two horizontal arms at the other end. The reservoir consists of a whitish or pale yellow cylinder, made of a mixture of LNG and silicone (polydimethylsiloxane), containing a total of 19.5 mg LNG. The reservoir is covered by a semi-opaque silicone membrane, composed of polydimethylsiloxane and colloidal silica. A ring composed of 99.95% pure silver is located at the top of the vertical stem close to the horizontal arms and is visible by ultrasound. The polyethylene of the T-body is compounded with barium sulfate, which makes it radiopaque. A monofilament blue polypropylene removal thread is attached to a loop at the end of the vertical stem of the T-body. The polypropylene of the removal thread contains <0.5% phthalocyaninato(2-) copper as a colorant (see Figure 10). The components of Kyleena, including its packaging, are not manufactured using natural rubber latex. Figure 10. Kyleena Kyleena 11.2 Inserter Kyleena is packaged sterile within an inserter. The inserter (Figure 11), which is used for insertion of Kyleena into the uterine cavity, consists of a symmetric two-sided body and slider that are integrated with flange, lock, pre-bent insertion tube and plunger. The outer diameter of the insertion tube is 3.8 mm. The vertical stem of Kyleena is loaded in the insertion tube at the tip of the inserter. The arms are pre-aligned in the horizontal position. The removal threads are contained within the insertion tube and handle. Once Kyleena has been placed, the inserter is discarded. Figure 11. Diagram of Inserter Inserter Chem Diagram
⚠️ Warnings
Warnings Allergy alert: Do not use if you have ever had an allergic reaction to levonorgestrel Sexually transmitted diseases (STDs) alert: This product does not protect against HIV/AIDS or other STDs Do not use • if you are already pregnant (because it will not work) • for regular birth control Ask a doctor or pharmacist before use if you are taking efavirenz (HIV medication) or rifampin (tuberculosis treatment) or medication for seizures (epilepsy). These medications may reduce the effectiveness of levonorgestrel. When using this product you may have • menstrual changes • tiredness • breast pain • nausea • headache • vomiting • lower stomach (abdominal) pain • dizziness Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away. (1-800-222-1222)