Procardia nifedipine fda approval date 1981?

Yes. Nifedipine (brand name Procardia) was approved by the FDA in 1981 (for hypertension and angina).

If you need the exact day/month, the FDA’s records (Orange Book / drug approval database) list the initial approval year as 1981, but the precise date isn’t always shown publicly. I can help you look up the exact date in FDA archives if you’d like.