Ahngook. in patent disputes with Novarsc.

A patent dispute raised to Ahn gook and Pfizer on Ahn gook's Levotension tab., an generic of Pfizer's Novarsc.

Levotension tab. (amlodipine besylate S) was known as a S-isomer of amlodipine, showing an equivalent anti-hypertension effect at a half dose of Novarsc with less adverse reactions such as edema.

Ahn Gook has prepared a lawsuit dispute against Pfizer since 2005 in close associat...