Jan Sahai, PharmD; Gary Garber, MD; Keith Gallicano, PhD; Linda Oliveras, BSc; D. William Cameron, MD
Sahai J, Garber G, Gallicano K, Oliveras L, Cameron DW. Effects of the Antacids in Didanosine Tablets on Dapsone Pharmacokinetics. Ann Intern Med. 1995;123:584-587. doi: 10.7326/0003-4819-123-8-199510150-00003
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Published: Ann Intern Med. 1995;123(8):584-587.
To investigate 1) the effects of the magnesium-aluminum antacids in didanosine tablets on dapsone absorption in healthy volunteers and 2) the effects of the antacid formulation of active didanosine tablets on dapsone pharmacokinetics in patients seropositive for human immunodeficiency virus (HIV).
Two separate, randomized, two-period, two-treatment, crossover studies with a 21-day washout period between treatments.
Clinical investigation unit of a university hospital.
Six healthy men and six HIV-positive men.
Serial dapsone plasma concentrations were measured when dapsone, 100 mg, was administered alone and with either the third of four doses of didanosine placebo tablets (group 1) or the 27th of 28 doses of active didanosine tablets (group 2). In each study, pharmacokinetic variables were determined using noncompartmental methods and compared by analysis of variance.
When dapsone was administered alone, pharmacokinetic variables did not significantly differ from those with dapsone given in either combination (P > 0.10 for all comparisons).
Didanosine, antacids, and other excipients in the currently used didanosine chewable tablets did not significantly affect plasma concentrations of dapsone.
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HIV, Hospital Medicine, Infectious Disease.
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Print ISSN: 0003-4819 | Online ISSN: 1539-3704
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