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Sodium Starch Glycolate Type A Potato

Excipient (pharmacologically inactive substance)

What is it?

Sodium starch glycolate type A potato is the sodium salt of carboxymethyl ether of starch from potato origin. Starch glycolates are also of rice, wheat or corn origin. It is a white to off-white, tasteless, odorless, relatively free-flowing powder.

Sodium starch glycolate is used as a pharmaceutical grade dissolution excipient for tablets and capsules. Sodium starch glycolate absorbs water rapidly, resulting in swelling which leads to rapid disintegration of tablets and granules. It is used as a disintegrant, a suspending agent and as a gelling agent. Without a disintegrant, tablets may not dissolve appropriately and may effect the amount of active ingredient absorbed, thereby decreasing effectiveness.[1] [2]

[1] Dave RH. Overview of pharmaceutical excipients used in tablets and capsules. Drug Topics (online). Advanstar. 10/24/2008 Accessed 08/19/2011

[2] Pformulate. Excipients. Sodium Starch Glycolate. 2004. Accessed October 17, 2011

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