Effectiveness of nitrosorbide, corinfar and obsidan in preventing ischemia caused by the dipyridamole test

The efficacy of nitrosorbide, corinfar and obsidan in preventing myocardial ischemia, induced by exercise or intravenous dipyridamole, was evaluated in 20 coronary patients. Nitrosorbide was found to be the most effective, and obsidan, the least effective, drug in preventing the steal syndrome. It is suggested that the efficiency of anti-anginal drugs is based on their effect on coronary flow control as well as hemodynamic determinants of myocardial oxygen requirements. The dipyridamole test can be used for the assessment of the effects of antianginal agents.