Tadalafil finasteride compound?

Short answer: there isn’t a single approved “tadalafil finasteride” compound. They are two separate drugs with different roles, and as of now there is no widely approved fixed-dose combination product that contains both.

What this means:
- Tadalafil: a PDE5 inhibitor used for erectile dysfunction (ED) and/or benign prostatic hyperplasia (BPH) depending on the dose.
- Finasteride: a 5-alpha-reductase inhibitor used for BPH (and for male pattern hair loss at a lower dose).

Can they be used together?
- Yes, they can be prescribed together if a clinician thinks a patient would benefit from both ED treatment and BPH treatment. There’s no major pharmacokinetic interaction between them, but there are general considerations:
- Do not use tadalafil with nitrates or certain heart medications that can cause dangerous drops in blood pressure.
- Finasteride can have sexual side effects (e.g., decreased libido) which may interact with ED management in complex ways for some individuals.
- Finasteride lowers PSA levels by about 50%, which is important for prostate cancer screening.

Dosing ideas (only as examples—your doctor determines the right plan):
- Tadalafil: 5 mg daily (for ED or combined ED/BPH symptoms) or other dosing as prescribed.
- Finasteride: 5 mg daily for BPH (or 1 mg daily for hair loss, if that's the indication).

If you were asking about a fixed-dose combo product or about the chemistry of a single molecule combining both drugs: there isn’t one that’s approved. If you want, tell me more about your context (ED, BPH, hair loss, wanting a single pill, etc.), and I can tailor the information to your situation and discuss options, safety, and what to discuss with a prescriber.