期刊
EXPERT OPINION ON DRUG DELIVERY
卷 18, 期 9, 页码 1245-1259出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/17425247.2021.1909568
关键词
Amblyopia; atropine; contact lenses; cyclopegia; mydriasis; myopia; ocular bioavailability; ocular pharmacokinetics; systemic bioavailability; uveitis
资金
- MINECO [SAF2017-83118-R]
- Agencia Estatal de Investigacion (AEI) Spain
- Xunta de Galicia [ED431C 2020/17]
- FEDER
Atropine, an old-known drug, has gained increasing attention for its therapeutic effects on eye structures. When administered topically, attention should be paid to atropine ocular pharmacokinetics and its ability to access the posterior segment. There is an urgent need to design formulations that can selectively deliver atropine to the target tissue for each specific application.
Introduction Atropine is an old-known drug which is gaining increasing attention due to the myriad of therapeutic effects it may trigger on eye structures. Nevertheless, novel applications may require more adequate topical formulations. Areas covered This review aims to gather the existing knowledge about atropine and its clinical applications in the ophthalmological field when administered topically. Atropine ocular pharmacokinetics is paid a special attention, including recent evidences of the capability of the drug to access to the posterior segment. Ocular bioavailability and systemic bioavailability are counterbalanced. Finally, limitations of traditional dosage forms and potential advantages of under investigation delivery systems are analyzed. Expert opinion Mydriasis and cyclopegia have been widely exploited for eye examination, management of anterior segment diseases, and more recently as antidotes of chemical weapons. Improved knowledge on drug receptors and related pathways explains atropine repositioning as an outstanding tool to prevent myopia. The ease with which atropine penetrates ocular tissues is a double edged sword, that is, while it ensures therapeutic levels in the posterior segment, the unspecific distribution causes a wide variety of untoward effects. The design of formulations that can selectively deliver atropine to the target tissue for each specific application is an urgent unmet need.
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