Product characteristics and pharmacokinetics of intranasal ipratropium bromide

Autor: Jay Grossman, Thomas MacGregor, Margaret T. Wecker, Chester C. Wood, Philip Fireman
Rok vydání: 1995
Předmět:
Zdroj: The Journal of allergy and clinical immunology. 95(5 Pt 2)
ISSN: 0091-6749
Popis: The in vivo absorption potential of ipratropium bromide nasal spray was evaluated in studies involving healthy volunteers (0.03%, 0.06%, and 0.12% dosage strengths) and patients with perennial rhinitis (0.03% and 0.06%) and the common cold (0.06%). The dose used was two sprays per nostril, corresponding to a total dose of 84 micrograms, 168 micrograms, and 336 micrograms for the three dosage strengths. These studies indicate that 10% or less of active drug is absorbed systemically after nasal administration based on the amount of unchanged drug excreted in urine in a 24-hour interval. In most instances, the plasma drug concentrations were undetectable. In none of these studies did plasma ipratropium concentrations reach a level where systemic anticholinergic effects are known to occur.
Databáze: OpenAIRE