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Tadalafil + sildenafil is a compounded combination drug containing two phosphodiesterase type 5 (PDE5) inhibitors—tadalafil and sildenafil—used primarily for the treatment of erectile dysfunction (ED). Both agents work by inhibiting the PDE5 enzyme, resulting in increased blood flow to the penis during sexual stimulation. Tadalafil has a longer half-life (up to 36 hours), providing prolonged efficacy, while sildenafil acts more rapidly but with a shorter duration of action (about 4 hours). The combination is typically formulated as a custom-compounded medication, often in sublingual or buccal lozenge/troche form for faster absorption and improved bioavailability. This approach aims to leverage the complementary pharmacokinetics of both drugs for enhanced efficacy or patient-specific needs. Clinical studies suggest that combined therapy may offer modest improvements in erectile function compared to monotherapy without increasing adverse effects when used under medical supervision[1][2][4][6]. However, combining these medications outside of professional guidance can increase risks such as hypotension.
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