Viagra Super Active with kidney impairment: dosing and safety
Kidney function affects how the body clears Viagra Super Active (Sildenafil Citrate) and many of its metabolites. For people with chronic kidney disease, dialysis, or even mild renal impairment from age or comorbidities, the standard 100mg dose may need adjustment. This page summarises the practical principles for Viagra Super Active in renal impairment.
Why renal function matters for Viagra Super Active
A meaningful fraction of Sildenafil Citrate or its active metabolites is cleared by the kidneys for many medications. Reduced eGFR slows clearance, raises plasma concentrations and prolongs effect. The active sildenafil citrate inhibits PDE5 in penile tissue during sexual arousal, allowing cyclic GMP to accumulate, smooth muscle to relax and blood inflow to increase. The prescribing information for Sildenafil Citrate usually specifies dose adjustments by eGFR threshold (e.g. 30–60 vs <30 mL/min/1.73m²).
Practical guidance
According to the prescribing information, baseline kidney function should be checked before starting Viagra Super Active and periodically during treatment. People on dialysis need specialist input on dose timing relative to dialysis. Acute kidney injury — from dehydration, infection or other medications — can shift Viagra Super Active effects unpredictably and may warrant a temporary hold at 100mg.
Frequently asked questions
Is Viagra Super Active safe with kidney problems? ▾
Mild to moderate kidney impairment usually allows Viagra Super Active at adjusted lower 100mg doses with monitoring. Severe impairment (eGFR <30) often requires substantial reduction or alternative therapy. The prescriber decides based on lab results and the indication.
Do I need lab tests on Viagra Super Active if I have kidney disease? ▾
Yes — periodic eGFR and electrolyte monitoring is the standard practice for Viagra Super Active in chronic kidney disease. Frequency depends on the severity of impairment and on Sildenafil Citrate-specific risks. The prescriber sets the schedule.
More on Viagra Super Active
- With alcoholViagra Super Active and alcohol — is it safe to drink?
- With foodShould Viagra Super Active be taken with food?
- Side effectsViagra Super Active side effects: common, rare and warning signs
- Dosage guideViagra Super Active dosage guide: how much to take and when
- OnsetHow fast does Viagra Super Active start working?
- DurationHow long does Viagra Super Active last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.