“Along with 2-hydroxynicotinic acid (Ki = 2.3 × … following nonsteroidal anti-inflammatory compounds competed reversibly with nicotinic acid for the enzyme: flufenamic acid (Ki = 4.…), mefenamic acid (Ki = 7.6 × 10−5M), salicylic acid (Ki = 1.6 × 10−4M), phenylbutazone (Ki = 1.…), and indomethacin (Ki = 4.2 × 10−4M).”