the addition of the verapamil hydrochloride injection to the theophylline in 5 % dextrose injection resulted in decreased mean ph values of 4.29 and 4.37 for all solutions compared with 4.80 and 4.90 for the verapamil control samples at concentrations of 0.4 and 0.1 mg/ml .
C0700468
verapamil hydrochloride
C0042523
verapamil