Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.

Identifiers

IUPAC Name

(8R,9S,10R,13S,14S,17R)-13-ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-3-one

InChIKey

WWYNJERNGUHSAO-XUDSTZEESA-N

SMILES

CC[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@]2(C#C)O)CCC4=CC(=O)CC[C@H]34

Synonyms (172)

LNG
LNG-IUS
Levonorgestrel (JAN/USP/INN)
Levonorgestrel for system suitability 2, European Pharmacopoeia (EP)
Levonorgestrel, British Pharmacopoeia (BP)
Levonorgestrel, European Pharmacopoeia (EP)
Levonorgestrel, United States Pharmacopeia (USP)
Levonorgestrel; Norgestimate EP Impurity B
Levonorgestrelum [INN-Latin]
Norgestrel (JP17/USP/INN)
Norgestrelum [INN-Latin]
(-)-Norgestrel
18-Methylnorethisterone
1lhv
After Banger
AfterPlan
Aftera
Afterpill
Athentia Next
BAY 86-5028
CRYSELLE COMPONENT NORGESTREL
Curae
D-Norgestrel
Dexnorgestrel (obsol.);
E-Gen-C
EContra One-Step
Econ Morning After
Emergency Contraceptive
Emerres
Emerres una
Empowered Choice
Ezinelle
FH 122-A
Fallback Solo
Fem Choice morning after
Follistrel
Her Style
IMPLANT WITH LEVONORGESTREL
ITHAPPENZ MORNING AFTER
Intrauterine levonorgestrel
Isteranda
Jadelle
Jaydess
Julie
Kyleena
L-Norgestrel
LD norgestrel [French]
LEVONORGESTREL [MART.]
Levlen ED
Levogel
Levonelle
Levonelle one step
Levonorgestrel
Levonorgestrel (Levonelle)
Levonorgestrel (Standard)
Levonorgestrel 1.5 mg
Levonorgestrel CRS
Levonorgestrel RS
Levonorgestrel Tablet, 1.5 mg
Levonorgestrel implant
Levonorgestrel implants
Levonorgestrelum
Levonova
Levosert
Liletta
Logynon ED
Microgest ED
Microgyn
Microgynon 21
Microgynon 28
Microgynon 30 ED
Microgynon CD
Microlut
Microlution
Microluton
Microval
Minivlar 30
Mirena
Mirena (TN)
Monofeme 28
Monovar
Morning After
My Choice TM
My Way
NORGESTIMATE IMPURITY B
NORGESTREL [MART.]
Neogest
Neogynon 21
New Day
Next Choice One Dose
Next choice
NorLevo
Nordet
Nordette 21
Nordette 28
Norgeston
Norgestrel (-)-form
Norgestrel CRS
Norgestrel [Progestins]
Norgestrel-(-)-D
Norgestrelum
Norplant (TN)
Norplant 2
Norplant II
Norplant System
OVRAL COMPONENT NORGESTREL
Opcicon One-step
Option 2
Optionelle
Oral levonorgestrel
Ovoplex 30-150
Ovral-Lo
Ovranette
Ovrette
Ovrette (TN)
Plan B
Plan B One-Step
PostDay One-Step
Postinor
Preven
React
Rigevidon 21+7
SheWise
Skyla
Skyla (TN)
Stediril 30
Stix Restart
Take Action
Tri-Levlen 21
Triagynon
Triciclor
Trifeme 28
Trigoa
Trinordiol 21
Trinordiol 28
Triphasil 21
Triphasil 28
Triquilar ED
Upostelle
Wy 3707
basic care levonorgestrel
dl-Norgestrel