Moxaverine hydrochloride (Kollateral forte®, Ursapharm. Saarbrücken, Germany) has been shown to increase ocular blood flow in patients with age-related macular degeneration, primary open angle glaucoma, and to increase choroidal and retrobulbar blood flow in elderly patients with eye diseases associated with hypo-perfusion. The ocular efficacy of moxaverine has been explored in the clinic.
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^Pemp B, Garhofer G, Lasta M, Schmidl D, Wolzt M, Schmetterer L (March 2012). "The effects of moxaverine on ocular blood flow in patients with age-related macular degeneration or primary open angle glaucoma and in healthy control subjects". Acta Ophthalmologica. 90 (2): 139–45. doi:10.1111/j.1755-3768.2010.01878.x. PMID20456253.
^Clinical trial number NCT01629680 for "A Randomized, Placebo-controlled Study Investigating the Effects of Moxaverine on Ocular Blood Flow After Oral Administration in Healthy Subjects" at ClinicalTrials.gov