
phentolamine inj brand names and other generic formulations include:
Regitine Inj
promethazine-phenylephrine-codeine oral brand names and other generic formulations include:
Chemergan VC With Codeine Oral, Mallergan-VC With Codeine Oral, M-Phen Oral, Para-Hist At Oral, Phenergan VC-Codeine Oral, Promethazine VC-Codeine Oral
phentolamine inj and promethazine-phenylephrine-codeine oral
phentolamine inj , promethazine-phenylephrine-codeine oral . Either decreases the effects of the other by Mechanism: opposing drug effects.
phentolamine inj and promethazine-phenylephrine-codeine oral
phentolamine inj , promethazine-phenylephrine-codeine oral . Either decreases effects of the other by Mechanism: pharmacodynamic antagonism.
Check for more interactions with the Drug Interaction Checker
Drug Interaction Categories
Contraindicated
Never use this combination of drugs because of high risk for dangerous interaction
Serious
Potential for serious interaction; regular monitoring by your doctor required or alternate medication may be needed
Significant
Potential for significant interaction (monitoring by your doctor is likely required)
Minor
Interaction is unlikely, minor, or nonsignificant