(a) whether clinical trials in the United States have found that heart bypass surgery patients taking Bextra , and anti inflammatory drug in the same class as the newly banned `Rofecoxin`, increases the risk of stroke and heart attack;
(b) if so, whether the Bextra is a Valdecoxin sold in India under the banned names of Vazlus( Clenmark,) , Valcox(Unichem) , Valdiff( Cipla) and V-Cox ( Lupin) among other ; and
(c) if so, the response of the Union Government on the sale of such drugs in the market?