Oil suspended phenylephrine

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Nitrogen containing other than solely as a nitrogen in an...

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514912, A61K 31135

Patent

active

046236643

ABSTRACT:
An oil suspension, preferably sesame seed oil suspension, of the base form of phenylephrine as an opthalmic medicament. Surprisingly, the base form of phenylephrine is much quicker absorbed into the eye than the conventional acid salt form. As a result, lower dosage levels can be used to achieve the same mydriatic effect, thus reducing the risk of adverse side effects from systemic absorption.

REFERENCES:
patent: 1890860 (1932-12-01), Omohundro
patent: 3149035 (1964-09-01), Riegelman
patent: 3172816 (1965-03-01), Swintosky
patent: 3515781 (1970-06-01), Steinberg
patent: 3908017 (1975-09-01), Hussain et al.
patent: 4001388 (1977-11-01), Shell
patent: 4271143 (1981-06-01), Schoenwald et al.
patent: 4469706 (1984-09-01), Nathanson
Handbook of Ocular Pharmacol., 2nd ed.--1978, p. 228, PSG Publishing Co., Inc.--Littleton, Mass.
Ocular Pharmacol., 4th ed.--1978, pp. 236-238, The C. V. Mosby Co.--Saint Louis.
Chem. Abst. 82: 116057(w) (1975)--Hardberger et al.

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