Yes, there is supporting evidence for the two ingredients in Tadapox, but not much direct high-quality research on the exact combination tablet itself. Tadapox typically combines tadalafil for erectile dysfunction and dapoxetine for premature ejaculation, so the evidence base mostly comes from studies of each medicine separately.

For tadalafil, multiple trials show it improves erectile function and is generally well tolerated. One large randomized trial found tadalafil 5 mg once daily significantly improved erectile function and lower urinary tract symptom scores versus placebo, with benefits appearing within weeks. Other studies also report tadalafil 10 mg and 20 mg taken as needed can improve erectile function across a broad range of patients.

For dapoxetine, evidence is also stronger for the individual drug than for the fixed-dose combination. A review found dapoxetine improved patient-reported control, ejaculation latency, and sexual satisfaction compared with placebo. NICE similarly summarized several studies showing dapoxetine 30 mg and 60 mg improved time to ejaculation and related outcomes over 12 to 24 weeks.

There is also research interest in combining dapoxetine with a PDE5 inhibitor for men who have both premature ejaculation and erectile dysfunction. However, that does not automatically prove every branded combination tablet is equally studied or approved. The exact product name Tadapox Tablet is more often seen in commercial listings than in major clinical trials, while the underlying drug combination has a clearer evidence base.

So the short answer is: yes, there are studies supporting tadalafil and dapoxetine, and some support for the combination concept, but direct evidence specifically on Tadapox tablets appears limited.