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Addition of anticholinergic solution prolongs bronchodilator effect of beta 2 agonists in patients with chronic obstructive pulmonary disease.
Levin DC, Little KS, Laughlin KR, Galbraith JM, Gustman PM, Murphy D, Kram JA, Hardie G, Reuter C, Ostransky D, McFarland K, Petty TL, Silvers W, Rennard SI, Mueller M, Repsher LH, Zuwallack RL, Vale R. Levin DC, et al. Among authors: zuwallack rl. Am J Med. 1996 Jan 29;100(1A):40S-48S. doi: 10.1016/s0002-9343(96)80073-8. Am J Med. 1996. PMID: 8610716 Clinical Trial.
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