The fda has approved a higher dose of the rivastigmine transdermal system (13.3 mg/24 hours) for the treatment of Alzheimer's disease (AD). Lower-dose patches were previously approved for mild-to-moderate disease. Rivastigamine is a reversible acetylcholinesterase inhibitor. The transdermal system is marketed by Novartis as Exelon.
The impression is acute infero-posterior infarction, with possible lateral and right ventricular involvement. In most patients, the right coronary artery (RCA) supplies the right ventricle and posterior and inferior walls of the left ventricle.