Last update May 20, 2024
Limited compatibility
Suggestions made at e-lactancia are done by APILAM team of health professionals, and are based on updated scientific publications. It is not intended to replace the relationship you have with your doctor but to compound it. The pharmaceutical industry contraindicates breastfeeding, mistakenly and without scientific reasons, in most of the drug data sheets.
Your contribution is essential for this service to continue to exist. We need the generosity of people like you who believe in the benefits of breastfeeding.
Thank you for helping to protect and promote breastfeeding.
Urapidil belongs to these groups or families:
Main tradenames from several countries containing Urapidil in its composition:
Variable | Value | Unit |
---|---|---|
Oral Bioavail. | 78 | % |
Molecular weight | 388 | daltons |
Protein Binding | 71 - 80 | % |
VD | 0.8 (0.6 - 1.2) | l/Kg |
pKa | 8.1 | - |
Tmax | 6 | hours |
T½ | 3 (2.2 - 4.4) | hours |
Write us at elactancia.org@gmail.com
e-lactancia is a resource recommended by Academy of Breastfeeding Medicine - 2015 of United States of America
Would you like to recommend the use of e-lactancia? Write to us at corporate mail of APILAM
A centrally and peripherally-acting alpha-1 adrenergic antagonist with vasodilator effect indicated in the treatment of hypertensive crises. Administration via intravenous infusion for a maximum of one week.
Since the last update we have not found any published data on its excretion in breast milk.
Its pharmacokinetic data (Kirsten 1998 and 1988) makes it difficult to accurately predict its possible excretion in breastmilk.
Pharmacokinetics show that after 3 elimination half-lives (T½) 87.5% of the drug is eliminated from the body; after 4 T½ it is 94%, after 5 T½, 96.9%, after 6 T½, 98.4% and after 7 T½ it is 99%. From 7 T½ the plasmatic concentrations of drug in the body are negligible. In general, a period of at least five half-lives can be considered a safe waiting period before breastfeeding again. (Anderson 2016)
Taking as reference the longest published T½ (Kirsten 1988) these 5 T½ would correspond to 24 hours. To further minimize the risk it may be advisable to stop breastfeeding until 35 hours after the last dose (7 T½). Until there is more published data on this drug in relation to breastfeeding, safer known alternatives may be preferable (Kutlesič 2015, Schaefer 2015 p716), especially during the neonatal period and in cases of prematurity.