Slide 1
The ingredient is not the whole product
A medicine’s formulation includes the active substance and its delivery design. The form can change when and where the substance becomes available.
More to Read
A tablet, solution and controlled-release product can contain the same ingredient without producing the same time course. Formulation is therefore part of pharmacological performance.
Slide 2
Dissolving precedes absorption
For many oral products, the drug must dissolve before it can be absorbed. The formulation influences how quickly that step occurs.
More to Read
Laboratory dissolution testing examines release under controlled conditions. It helps characterize a product but must be related to what happens in the body rather than treated as an identical measurement.
Slide 3
Extended release spreads the input
An extended-release design makes drug available over a longer period. It changes the input pattern instead of merely increasing the amount present.
More to Read
Materials can regulate how fluid enters a tablet or how dissolved drug leaves it. Different engineering approaches can create broadly similar goals through different release mechanisms.
Slide 4
Delayed release answers another question
A delayed-release coating can postpone release until a product has passed the stomach. Delaying the start differs from prolonging the whole release.
More to Read
This distinction matters when reading product descriptions. Two labels that both sound like slower delivery may refer to different intended locations or time patterns.
Slide 5
Equivalence must be demonstrated
Matching an active ingredient and strength does not alone establish identical delivery. Product equivalence depends on evidence appropriate to the formulation.
More to Read
Regulatory evaluation can compare both the rate and extent of exposure. A delivery design is therefore assessed through measured behavior, not simply by counting how much ingredient a product contains.
Sources
- Orange Book Preface
US Food and Drug Administration
- Extended Release Oral Dosage Forms
US Food and Drug Administration