DURING PRODUCT DEVELOPMENT STAGE:

Idea to help retain: Compare absorption of drugs . 1 studies bioavailability to compare different formulations of the drug substance to ascertain which one allows the most desirable absorption pattern. 2 Later bioavailability studies used to compare the availability of the drug substance in different production batches. 3 They may also be used to compare the availability of the drug substance in different dosage forms (e.g., tablets, capsules, elixirs), 4 or in the same dosage form produced by different (companies) manufacturers.