Dipyridamole (Standard) is the analytical standard of Dipyridamole. This product is intended for research and analytical applications. Dipyridamole is an orally active phosphodiesterase (PDE) inhibitor. Dipyridamole also is an antiplatelet agent used in secondary prophylaxis against stroke. Dipyridamole can induce cancer cell-specific apoptosis[1][2][3].