Faculty Articles

PubMed Identifier

30324360

Title

In Vivo Evaluation of Taste-Masked Fast-Disintegrating Sublingual Tablets of Epinephrine Microcrystals

Publication Title

AAPS PharmSciTech [electronic resource]

Volume

19

Issue

8

Publication Date / Copyright Date

11-1-2018

First Page

3886

Last Page

3894

DOI Number

10.1208/s12249-018-1171-4

Abstract

In community settings, IM injection of 0.3 mg epinephrine (Epi) using an auto-injector is the drug of choice for treatment of anaphylaxis. Previously, a taste-masking (TM) formulation of fast-disintegrating sublingual tablets (FDSTs) was developed in our lab. Also, Epi was micronized (Epi-MC) successfully and reduced the previously achieved bioequivalent sublingual Epi dose to 0.3 mg IM injection by half using non-taste-masked fast-disintegrating sublingual tablets (TM-FDSTs). Our objective for this study was to evaluate the sublingual absorption of Epi-MC using TM-FDST. These sublingual Epi tablets have potential for out-of-hospital treatment of anaphylaxis and are suitable for human studies. TM-FDSTs containing Epi-MC were manufactured by direct compression. The rate and extent of Epi absorption from our developed 20 mg Epi-MC-TM-FDSTs (n = 5) were evaluated in rabbits and compared to the previous result from 20 mg Epi-MC in non-TM-FDSTs and EpiPen® auto-injector. Blood samples were collected over 1 h, and Epi concentrations were measured using HPLC with electrochemical detection. Mean ± SEM AUC

Disciplines

Medicine and Health Sciences | Pharmacy and Pharmaceutical Sciences

Keywords

Administration, Sublingual, Anaphylaxis, Animals, Bronchodilator Agents, Drug Evaluation, Preclinical, Epinephrine, Excipients, Female, Injections, Intramuscular, Microspheres, Rabbits, Random Allocation, Tablets, Taste

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