BAK

BAK: Boon or Bane?

Submitted by winter.lauder on Fri, 11/25/2011 - 11:51am

Preservatives found in pharmaceutical products are a group of chemical substances added in multidose solutions to primarily reduce the risk of microbial contamination. Benzalkonium chloride, Polyquad, SofZia, and Purite are the common preservatives especially used in anti glaucoma agents. While SofZia and Purite are new preservatives that have been called vanishing preservatives, because they convert to nontoxic substances once in the eye, Benzalkonium chloride, on the other hand is the most common ophthalmic preservative.

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EYE DROPS -- DANGERS LURK WITHIN By Bill Sardi

Submitted by Amanda on Thu, 04/15/2010 - 11:07am

Your eyes bother you. So you go down to the drug store and buy a bottle of artificial tears. There are so many brands you really don't know which one is best. Or you trust your eye doctor who may prescribe an eye drop for glaucoma or who recommends an over-the-counter eye drop for your dry, red, itchy, burning eyes. To keep the ingredients from spoiling, manufacturers add preservatives. It is these preservatives, even in doses as small as 1/10th of 1 percent, that are a cause for concern.

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