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PROPINE® (dipivefrin HCI ophthalmic solution, USP) is a member of a class of drugs known as prodrugs. Prodrugs are usually not active in themselves and require biotransformation to the parent compound before therapeutic activity is seen. These modifications are undertaken to enhance absorption, decrease side effects and enhance stability and comfort, thus making the parent compound a more useful drug. Enhanced absorption makes the prodrug a more efficient delivery system for the parent drug because less drug will be needed to produce the desired therapeutic response.
PROPINE® (dipivefrin) ophthalmic solution is a prodrug of epinephrine formed by the diesterification of epinephrine and pivalic acid. The addition of pivaloyl groups to the epinephrine molecule enhances its lipophilic character and as a consequence, its penetration into the anterior chamber.
PROPINE® (dipivefrin) is converted to epinephrine inside the human eye by enzyme hydrolysis. The liberated epinephrine, an adrenergic agonist, appears to exert its action by decreasing aqueous production and by enhancing outflow facility. The PROPINE® (dipivefrin) prodrug delivery system is a more efficient way of delivering the therapeutic effects of epinephrine, with fewer side effects than are associated with conventional epinephrine therapy.
The onset of action with one drop of PROPINE® (dipivefrin) occurs about 30 minutes after treatment, with maximum effect seen at about one hour.
Using a prodrug means that less drug is needed for therapeutic effect since absorption is enhanced with the prodrug. PROPINE® ophthalmic solution at 0.1% dipivefrin was judged less irritating than a 1% solution of epinephrine hydrochloride or bitartrate. In addition, only 8 of 455 patients (1.8%) treated with PROPINE® (dipivefrin) reported discomfort due to photophobia, glare or light sensitivity.
Last reviewed on RxList: 11/18/2016
This monograph has been modified to include the generic and brand name in many instances.
Additional Propine Information
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