Meanwhile, the BSE Sensex was up 165.90 points, or 0.98%, to 16,955.40.
On BSE, 2.22 lakh shares were traded in the counter as against an average daily volume of 5.31 lakh shares in the past one quarter.
The stock had hit a high of Rs 421.80 and a low of Rs 412 so far during the day.
The company's equity capital is Rs 210.21 crore. Face value per share is Rs 5.
The current price of Rs 419.95 discounts the company's Q3 September 2009 annualized EPS of Rs 17.17, by a PE multiple of 24.46.
Acetaminophen is the generic version of McNeil Cons' Tylenol.
Ranbaxy Laboratories reported net profit of Rs 186.08 crore in Q3 September 2009 as compared to net loss of Rs 352.93 crore in Q3 September 2008. Net sales rose 3.8% to Rs 1189.60 crore in Q3 September 2009 over Q3 September 2008.
Ranbaxy Laboratories manufactures and markets, generic pharmaceuticals, value added generic pharmaceuticals, branded generics, active pharmaceuticals and intermediates.