Cimetidine
Adverse Effect: Increase in plasma Sildenafil concentrations when administered concomitantly # Clinical Management: Monitor for therapeutic effects and adjust the dose accordingly.
Erythromycin
Adverse Effect: Increase in plasma levels of sildenafil due to CYP3A4 inhibition # Clinical Management: Monitor for therapeutic effects and adjust the dose accordingly.
Rifampicin
Adverse Effect: Decrease in plasma levels of sildenafil due to CYP3A4 induction # Clinical Management: Monitor for therapeutic effects and adjust the dose accordingly.
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