Assertion: viagra | /r/CapableOf | potentiate hypotensive effects
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text: For patients taking an alpha-blocking antihypertensive agent, use sildenafil with caution and consider a lower starting dose, as sildenafil can potentiate hypotensive effects (Khera 2020); some experts recommend against routinely using these drugs together, particularly in patients with cardiovascular disease (Sauer 2019).