Last update March 4, 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.
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Main tradenames from several countries containing Astemizole in its composition:
Variable | Value | Unit |
---|---|---|
Molecular weight | 459 | daltons |
Protein Binding | 97 | % |
VD | 3.6 | l/Kg |
Tmax | 1 | hours |
T½ | 24 (metabol: 240 - 480) | hours |
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e-lactancia is a resource recommended by El Parto Es Nuestro of Spain
Would you like to recommend the use of e-lactancia? Write to us at corporate mail of APILAM
Astemizole is a second generation antihistamine, piperidine derivative without sedative or antimuscarinic action. It is indicated for the symptomatic relief of allergic rhinitis and conjunctivitis and urticaria. Oral administration once a day.
At the time of the last update, we found no published data on its excretion in breast milk.
Its pharmacokinetic data (large volume of distribution, moderately high molecular weight and high percentage of binding to plasma proteins) make it unlikely to pass into breast milk in clinically significant amounts.
20% of infants (2 of 10) breast-fed by mothers taking astemizole had symptoms of irritability (Ito 1993).
It is a very long-lasting antihistamine because the half-life of its active metabolite is 10 to 20 days.
It has been withdrawn from the market in most countries due to the risk of adverse effects such as ventricular arrhythmia.