Efficacy of salmeterol is increased if it is given along with -: (A) Theophylline, (B) Coicosteroid, (C) Ipratropium, (D) Sodium cromoglycate
Answer is B. Ans. is 'b' i.e., Coicosteroid o Concurrent use of inhaled salmeterol with inhaled glucocoicoid produces effects equivalent to double dose of the coicoid alone.