Procardia XL (nifedipine)
- Product information for US residents in PDF format. [Acrobat Reader required]
- http://www.pfizer.com/pfizer/download/uspi_procardia_xl.pdf

DrugDigest: Nifedipine ( Adalat, Procardia )
- Information on dosage, usage, side effects, interactions, and drug comparisons, including generics when available.
- http://www.drugdigest.org/DD/DVH/Uses/0,3915,488%7CNifedipine,00.html

Procardia
- Information from the RxList.
- http://www.rxlist.com/cgi/generic2/nifedip.htm

Nifedipine
- Features information about the drug and its interactions with other medications.
- http://www.drugdigest.org/DD/DVH/Uses/0,3915,1048|Nifedipine+ER,00.html

Adalat
- Information from the RxList.
- http://www.rxlist.com/cgi/generic/nifedxl.htm