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. Author manuscript; available in PMC: 2008 Dec 1.
Published in final edited form as: Hypertension. 2008 Apr 21;51(6):1531–1536. doi: 10.1161/HYPERTENSIONAHA.107.105171

Figure 3. Potentiation of endogenous nitric oxide with sildenafil normalizes supine hypertension in autonomic failure.

Figure 3

Effect of sildenafil 25 mg PO administered at 8 p.m. on nighttime systolic blood pressure (SBP) in 8 autonomic failure patients with supine hypertension.