摘要:
The present invention concerns prodrugs of mexiletine (and mexiletine's active metabolite) pharmaceutical compositions containing such prodrugs. Methods for treating myotonic conditions, while reducing the inherent adverse G1 side effects associated with mexiletine, increasing the bioavailability of mexiletine, and improving the pharmacokinetic reproducibility of mexiletine with the aforementioned prodrugs are also provided.
摘要:
The present invention relates to prodrugs of a wide variety of drugs and pharmaceutical compositions containing such prodrugs. Methods for minimizing locally mediated (from within the gut lumen) adverse gastrointestinal events associated with the underivatised drug and increasing the sustainment of plasma drug levels with the aforementioned prodrugs are also provided. Thus, the present invention relates to the use of prodrugs of a wide diversity of drugs (other than opioids) to transiently inactivate them and so reduce directly, locally mediated adverse gastrointestinal (GI) side–effects normally evident after administration of the parent compound. Additionally, such prodrugs may confer improved pharmacokinetics.
摘要:
This invention relates to the discovery of prodrugs of 5-substituted analogues of the selective platelet lowering agent anagrelide which are extremely potent inhibitors of phosphodiesterase III (PDE III). The prodrug compounds are potentially useful agents for the treatment of conditions in which the inhibition of PDE III in beneficial.
摘要:
This invention relates to the discovery of substituted analogues of the selective platelet lowering agent anagrelide with reduced potential for cardiovascular side-effects which should lead to improved patient compliance and safety in the treatment of myeloproliferative diseases. More specifically, the present invention relates to certain imidazoquinazoline derivatives which have the general formula shown below wherein the substituents have the meanings defined in claim (I): and which have utility as platelet lowering agents in humans. The compounds of the present invention function by inhibiting megakaryocytopoeisis and hence the formation of blood platelets.
摘要:
This invention relates to the discovery of 3-and 5-substituted analogues of the selective platelet lowering agent anagrelide with reduced potential for cardiovascular side-effects which should lead to improved patient compliance and safety in the treatment of myeloproliferative diseases. More specifically, the present invention relates to certain imidazoquinazoline derivatives which have the general formula shown below wherein the substituents have the meanings defined in claim 1: and which have utility as platelet lowering agents in humans. The compounds of the present invention function by inhibiting megakaryocytopoeisis and hence the formation of blood platelets.
摘要:
The invention relates to pharmaceutical compositions comprised of a chemical moiety attached to an active agent in a manner that substantially decreases the potential of the active agent to cause overdose or to be abused. When delivered at the proper dosage the pharmaceutical composition provides therapeutic activity similar to that of the parent active agent.
摘要:
This invention relates to the discovery of 3-and 5-substituted analogues of the selective platelet lowering agent anagrelide with reduced potential for cardiovascular side-effects which should lead to improved patient compliance and safety in the treatment of myeloproliferative diseases. More specifically, the present invention relates to certain imidazoquinazoline derivatives which have utility as platelet lowering agents in humans. The compounds of the present invention function by inhibiting megakaryocytopoeisis and hence the formation of blood platelets.
摘要:
The present invention relates to the use of oil based delivery vehicles to prevent undesirable premature hydrolysis of phenolic amino benzoic acid carbamate prodrugs, while resident in the gut lumen. Preclusion of water and hydrolytic enzymes prior to prodrug absorption ensures that such compounds can be fully absorbed intact without undergoing unintended premature hydrolysis in the gastrointestinal tract so maximizing the benefit of improved systemic availability afforded by the prodrug. Furthermore judicious selection of oil and prodrug salt form can result in a sustained release plasma PK profile. The avoidance of premature degradation and release of active drug into the gut lumen minimizes any potential for a direct adverse interaction within the gut lumen.
摘要:
This invention relates to the discovery of 5-substituted analogues of the selective platelet lowering agent anagrelide, which are extremely potent inhibitors of phosphodiesterase III (PDE III). The compounds are potentially useful agents for the treatment of conditions in which the inhibition of PDE III in beneficial. Formula (I): wherein: R 1 is independently selected form C 1-6 alkyl or C 1-6 haloalkyl; R 2 is selected from hydrogen, C 1-6 alkyl or C 1-6 haloalkyl; and X 1 and X 2 are each independently halo.
摘要:
The present invention concerns prodrugs of opioid analgesics and pharmaceutical compositions containing such prodrugs. Methods for providing more consistent pain relief by increasing the bioavailability of the opioid analgesic with the aforementioned prodrugs are provided. The invention also provides for decreasing the adverse GI side effects of opioid analgesics.