With which of the following receptors theophylline has an antagonist interaction?
theophylline is an eg of methylxanthine the action of this identified as a) release of ca from sarcoplasmic reticulum b) inhibition of phosphodiesterase c)blockade of adenosine receptor ESSENTIALS OF MEDICAL PHARMACOLOGY SEVENTH EDITION KD TRIPATHI PG NO.226
Histamine receptor
Bradykinin receptor
Adenoside receptor
Inidazoline receptor
Respiratory system