Yes and no. You need to initiate a theophylline regimen via IV infusion in a 25 year old female who weighs 50 kg. A female patient to be given theophylline weighs 50 kg.
Theophylline is supplied as hydrous aminophylline for infusion.
Each mg of hydrous aminophylline contains 0.79 mg theophylline. Theophylline is supplied in several forms for oral administration. Oral F is approximately 1. One speaks of a steady state concentration for an infusion of drug. When drug is given by oral administration, one must think of average concentration with oscillation .