Iso Preterinal, or Ispril, Is a Pure Beta Agnis.

Io praterna is a pure beta agnis. Superexpensive to and very difficult to be compatible with other infusions. Some patients will not respond to apineferan with their bradacardia, and then they will respond to iso praternal. I wonder if it's due to some sort of an effect where apinefer causes a lot of vaso constriction that causes some sort of like reflex effect on the barre receptors that slows down the hit rate.