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Year : 1993  |  Volume : 25  |  Issue : 3  |  Page : 163--164

Drop volume of commercial anti-glaucoma eye drops

Lal Avtar 
 

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Lal Avtar


Seventy six bottles of 19 different brands of anti- glaucoma eye drops (pilocarpine 1, 2, 4 % and timolol 0.25, 0.5 %) were tested for total volume, total number of drops, drop volume, drops/ml, and duration of therapy, by using a 10 ml glass cylinder with 0.1 ml graduations and a mechanical counter. The range of the drop volume for pilocarpine 1% was 55.3 - 55.4 Šl: pilocarpine 2% was 41 .O - 54.4 Šl; pilocarpine 4% was 47.8 - 47.8 Šl and timolol 0.25% was 38.7 - 55.2 Šl; timolol 0.5% was 35.9 - 55.6 Šl. Ten out of 19 brands of antiglaucoma eye drops had total volume less than the labelled amount. The drop volume of the commercial anti- glaucoma eye drops is more than optimal.


How to cite this article:
Avtar L. Drop volume of commercial anti-glaucoma eye drops.Indian J Pharmacol 1993;25:163-164


How to cite this URL:
Avtar L. Drop volume of commercial anti-glaucoma eye drops. Indian J Pharmacol [serial online] 1993 [cited 2021 Jun 17 ];25:163-164
Available from: https://www.ijp-online.com/article.asp?issn=0253-7613;year=1993;volume=25;issue=3;spage=163;epage=164;aulast=Avtar;type=0