ATC Group: G03AD01 Levonorgestrel

The World Health Organization's ATC classification organizes medical drugs based on therapeutic properties, chemical composition, and anatomy. It helps make essential medicines readily available globally and is widely used in the pharmaceutical industry.

Position of G03AD01 in the ATC hierarchy

Level Code Title
1 G Genito urinary system and sex hormones
2 G03 Sex hormones and modulators of the genital system
3 G03A Hormonal contraceptives for systemic use
4 G03AD Emergency contraceptives
5 G03AD01 Levonorgestrel

Active ingredients in G03AD01

Active Ingredient Description
Levonorgestrel

The precise mode of action of levonorgestrel as an emergency contraceptive is not known. At the recommended regimen, levonorgestrel is thought to work mainly by preventing ovulation and fertilisation if intercourse has taken place in the preovulatory phase, when the likelihood of fertilisation is the highest.

Related product monographs

Title Information Source Document Type  
EMERRES Tablet Medicines & Healthcare Products Regulatory Agency (GB) MPI, EU: SmPC
ESCAPELLE Tablet Health Products Regulatory Authority (ZA) MPI, Generic
EZINELLE Tablet Medicines & Healthcare Products Regulatory Agency (GB) MPI, EU: SmPC
LEVONELLE Tablet Medicines & Healthcare Products Regulatory Agency (GB) MPI, EU: SmPC
NORLEVO Tablet Health Products Regulatory Authority (IE) MPI, EU: SmPC

Medicines in this ATC group

United States (US)

Brazil (BR)

Canada (CA)

Croatia (HR)

Cyprus (CY)

Finland (FI)

France (FR)

Ireland (IE)

Israel (IL)

Japan (JP)

Malta (MT)

Mexico (MX)

Netherlands (NL)

Romania (RO)

Singapore (SG)

South Africa (ZA)

Tunisia (TN)

Turkey (TR)

United Kingdom (UK)

Note the following: The list of brand names is continuously updated, and thus does not include the total of products circulating worldwide.