In an intraindividual double-blind study the effect of 1% (2.5 mg) and 2% (5 mg) reproterol aerosol was investigated in 30 patients with chronic obstructive bronchitis and asthma. Both solutions had a statistically highly significant bronchospasmolytic effect when airways resistance and specific conductance were measured. The effect was demonstrable immediately after termination of inhalation. Cardiac frequency and blood pressure remained unchanged. No subjective side effects were reported.
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http://dx.doi.org/10.1055/s-0028-1129034 | DOI Listing |
Pulm Pharmacol Ther
May 1999
Division of Pulmonary Disease and Critical Care Medicine, University of Miami at Mount Sinai Medical Center, Miami Beach, Florida 33140, USA.
The purpose of this study was to compare the effectiveness of an eight day treatment with clinically relevant doses of a fixed combination of the beta 2 mimetic reproterol hydrochloride and disodium cromoglycate with each agent given alone against antigen-induced early (EAR) and late airway responses (LAR) as well as post-antigen-induced airway hyperresponsiveness (AHR) in allergic sheep. Animals were treated in a randomized fashion with either the inhaled combination (n = 6), reproterol hydrochloride alone (n = 6), disodium cromoglycate alone (n = 6), or placebo (n = 8). Treatments (two puffs from a metered dose inhaler) were given three times a day for 7 days and once on the 8th day 1 h before airway challenge with Ascaris suum antigen.
View Article and Find Full Text PDFArzneimittelforschung
June 1998
ASTA Medica AG, Department of Clinical Pharmacology, Frankfurt/Main, Germany.
The present study was conducted to describe and compare the in vivo performance (systemic exposure), clinical and laboratory safety of a fixed combinational product of inhaled reproterol (CAS 54063-54-6) plus disodium cromoglycate (DSCG; CAS 15826-37-6) using a novel freon (CFC)-free metered dose inhaler (MDI), which uses 1,1,1,2,3,3,3-heptafluoropropane (HFA-227; CAS 431-89-0) as propellant and polyoxyethylene glyceryl trioleate (Tagat TO; CAS 68958-64-5) as surfactant relative to the conventional freon-driven MDI Allergospasmin in healthy male and female volunteers. Twenty-four young male and female healthy subjects were randomly allocated in gender-balanced fashion to 4 parallel treatment groups with single and repeated dosing of either reproterol + DSCG by HFA- or CFC-MDI (each time N = 8) or placebo by HFA- or CFC-MDI (each time N = 4) using matched placebo devices thus allowing a double-blind (with regard to placebo) approach. Treatments consisted of a single morning dose of 2 actuations followed 4 days later by a 1 week treatment course of 2 actuations four times daily.
View Article and Find Full Text PDFRespir Care
January 1992
Centre Valaisan de Pneumologie, Montana, Switzerland.
Background: Spacers devices are commonly used in aerosol therapy; however, they are bulky and require regular cleaning. A compact open spacer (OS, Synchroner, Fisons, UK) has been developed to overcome this problem. We compared bronchodilator efficacy associated with its use to efficacy of same dose via three other spacers: Volumatic (Glaxo Laboratories), Nebuhaler (Astra Laboratories), Inspirease (Key Pharmaceuticals).
View Article and Find Full Text PDFInt J Tissue React
September 1990
Department of Pharmacology and Toxicology, 1st Faculty of Medicine and Surgery, University of Naples, Italy.
We have investigated the effect of inhaled adenosine on bronchomotor tone in 16 healthy and 24 allergic and non-allergic bronchopathic subjects. We determined the inhaled adenosine dose-response curves after no treatment and after treatment with aminophylline (240 mg in 10 min), reproterol (90 mcg in 2 min) and salbutamol (100 mcg in 2 min) administered intravenously 15 min before adenosine and reproterol (500 mcg) and salbutamol (200 mcg) administered by inhalation from a metered aerosol 30 min before adenosine on separate days. Without prior treatment, inhaled adenosine caused bronchoconstriction in both groups of subjects (normal, and atopic and non-atopic asthmatic ones), but the peripheral airways revealed only a moderate change in normal subjects.
View Article and Find Full Text PDFSchweiz Med Wochenschr
November 1989
Alpine Kinderklinik Pro Juventute, Davos Platz.
The effect on lung function of two puffs of a mixture of 1 mg disodium cromoglycate (DNCG) and 0.5 mg of reproterol hydrochloride (Aarane) administered by metered dose inhaler through 4 different spacer devices (Volumatic, Nebuhaler, InspirEase and Synchron-Aerosol) was tested in 18 asthmatic patients (age 8-15 years). There was no loss or gain in the effectiveness of treatment from the tested aerosol according to the type of inhalation device used.
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