Is sustained release the same as extended release?

Sustained release’s definition is more akin to a “controlled release” rather than “sustained”. Extended-release dosage consists of either sustained-release (SR) or controlled-release (CR) dosage. SR maintains drug release over a sustained period but not at a constant rate.

Which is better prolonged release or sustained release?

While prolonged release tablets are meant to effect after some time from the moment they are administered and they are known to be released in small portions over a long period of time with no specifications to time or rate of concentration. Sustained release tablets are more of a controlled release.

What is difference between prolonged release and extended release?

Prolonged release means long time releasing system while extended release system means system which extends the releasing time. ER and PR are the same and have single functionality of extending the time of release of a drug from dosage forms. In this case drug release is extended with time but not specific.

What is the difference between ER and SR tablets?

CR = controlled release, SR = sustained release, ER = extended release, IR = immediate release.

What does sustained release mean?

Medical Definition of sustained-release. : designed to slowly release a drug in the body over an extended period of time especially to sustain therapeutic levels sustained-release capsules a sustained-release drug delivery system. More from Merriam-Webster on sustained-release.

What does extended release (ER) mean?

Medical Definition of extended-release : designed to slowly release a drug in the body over an extended period of time especially to reduce dosing frequency Learn More about extended-release

What is an extended release?

extended release. In pharmacology, the slow or gradual absorption of a drug after ingestion, e.g., one that achieves a peak concentration in the blood after about 6 hr.