Product Information

Registration Status: Active

LUCRIN INJECTION 5mg/ML is approved to be sold in Singapore with effective from 1990-12-15. It is marketed by ABBVIE PTE LTD, with the registration number of SIN05265P.

This product contains Leuprorelin 5mg/ml in the form of INJECTION. It is approved for SUBCUTANEOUS use.

This product is manufactured by Famar L'Aigle Usine St. Remy in FRANCE.

It is a Prescription Only Medicine that can only be obtained from a doctor or a dentist, or a pharmacist with a prescription from a Singapore-registered doctor or dentist.



Leuprolide belongs to the general class of drugs known as hormones or hormone antagonists. It is a synthetic 9 residue peptide analog of gonadotropin releasing hormone. Leuprolide is used to treat advanced prostate cancer. It is also used to treat uterine fibroids and endometriosis. Leuprolide is also under investigation for possible use in the treatment of mild to moderate Alzheimer's disease.


For treatment of prostate cancer, endometriosis, uterine fibroids and premature puberty

Mechanism of Action

Leuprolide binds to the gonadotropin releasing hormone receptor and acts as a potent inhibitor of gonadotropin secretion.


Bioavailability by subcutaneous administration is comparable to that by intravenous administration.
* 27 L [intravenous bolus administration to healthy male volunteers]
Primarily degraded by peptidase and not by cytochrome P450 enzymes.


* 8.34 L/h [healthy male receiving a 1-mg IV bolus]


In rats subcutaneous administration of 250 to 500 times the recommended human dose, expressed on a per body weight basis, resulted in dyspnea, decreased activity, and local irritation at the injection site. There is no evidence at present that there is a clinical counterpart of this phenomenon. In early clinical trials with leuprolide acetate doses as high as 20 mg/day for up to two years caused no adverse effects differing from those observed with the 1 mg/day dose.

Active Ingredient/Synonyms

(D-Leu(6),des-gly-NH2(10),pro-ethylamide(9))-gonadotropin-releasing hormone | L-Pyroglutamyl-L-histidyl-L-tryptophyl-L-seryl-L-tyrosyl-D-leucyl-L-leucyl-L-arginyl-L-proline ethylamide | Leuprorelin | Leuprorelina | Leuproreline | Leuprorelinum | PGlu-his-trp-ser-tyr-D-leu-leu-arg-pro-NHC2H5 | PGlu-his-trp-ser-tyr-D-leu-leu-arg-pro-nhet | Leuprolide |

Source of information: Drugbank (External Link). Last updated on: 3rd July 18. *Trade Name used in the content below may not be the same as the HSA-registered product.


  1. Health Science Authority of Singapore - Reclassified POM
  2. Drugbank