levonorgestreln.
/ˌliːvəʊnɔːˈdʒɛstrəl/ Pharmacology.
The laevorotatory isomer of norgestrel, with similar uses.
ΘΚΠ
the world > health and disease > healing > medicines or physic > medical preparations of specific origin > hormones and substances with same effect > [noun]
epinephrine1899
pituitrin1909
oxytocin1927
Pitocin1929
Pitressin1929
progestin1930
progesterone1935
methyltestosterone1936
pregnenolone1936
hexœstrol1939
stilboestrol1939
hydroxyprogesterone1941
progestogen1941
Premarin1942
hydroxycorticosterone1943
gestagen1948
hydrocortisone1951
cortisol1953
fluorohydrocortisone1954
isophane1954
prednisolone1955
prednisone1955
norethisterone1956
norethynodrel1957
dexamethasone1958
fludrocortisone1958
norethindrone1960
antidiuretic hormone1961
medroxyprogesterone1962
Pergonal1963
mesterolone1965
norgestrel1966
quinestrol1966
pancuronium1967
pentagastrin1967
levonorgestrel1977
1977 Approved Names 1973 (Brit. Pharmacopœia Comm.) Suppl. vii Levonorgestrel, (−)-13β-ethyl-17β-hydroxy-18,19-dinor-17α-pregn-4-en -20- yn-3-one. Progestational steroid.
1980 Brit. Med. Jrnl. 29 Mar. 940/3 The combination of levonorgestrel ( d-norgestrel) with 30μg of ethinyloestradiol or 1mg norethisterone acetate with 50μg of ethinyloestradiol would appear to be appropriate choices.
1990 New Scientist 29 Sept. 21/1 The ring..releases low doses of a progestogen called levonorgestrel, the same hormone as that contained in the ‘mini Pill’.
This entry has not yet been fully updated (first published 1997; most recently modified version published online June 2018).
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n.1977