VerapamilCalcium Channel BlockersDiltiazemP-GlycoproteinDose-Response Relationship, DrugDrug ResistanceCalciumDrug InteractionsAnti-Arrhythmia AgentsNicardipineNitrendipineTreatment OutcomeDaunorubicinCinnarizineDogsDouble-Blind MethodQuinidineAdministration, OralDrug-Related Side Effects and Adverse ReactionsDrug Resistance, MultipleTime FactorsFlunarizineDrug Therapy, CombinationDelayed-Action PreparationsDoxorubicinRhodamine 123Anesthesia, IntratrachealVinblastineBepridilStereoisomerismBlood PressureVasodilator AgentsCalcium ChlorideCalcium ChannelsDrug SynergismHeart RateCyclosporineKinetics