Verapamil, Oral/Injection: References

Facts & Comparison. Facts & Comparisons Web Site. http://online.factsandcomparisons.com/MonoDisp.aspx?monoID=fandc-hcp12168&quick=756580%7c5&search=756580%7c5&isstemmed=True&NDCmapping=-1&fromTop=true#firstMatch. Accessed August 22, 2016.

Calan SR [package insert]. Pfizer, Inc., New York, NY; October 2013. http://labeling.pfizer.com/showlabeling.aspx?id=534. Accessed August 22, 2016.