Verbatim response from Perplexity
If you want the most flexible, longer-lasting option, ask for tadalafil; if you want a shorter, more time-limited option, ask for sildenafil.[1][3][5] In studies, they have similar overall efficacy and safety, but tadalafil tends to last much longer and is often preferred by patients and partners for that reason.[1][4][5]
For a practical rule of thumb:
- Choose tadalafil if you want more spontaneity, longer coverage, or the option of a low-dose daily regimen.[3][5][7]
- Choose sildenafil if you prefer an on-demand pill with a shorter effect window and more predictable timing.[2][3][5]
Which service offers both? LloydsPharmacy Online Doctor explicitly says you can request both sildenafil and tadalafil through its service.[3] The other services in the results also discuss both drugs, but LloydsPharmacy is the one that directly states it offers both in the same online doctor service.[3]
If you tell me your priorities — longer duration, faster onset, fewer side effects, or daily vs as-needed use — I can help you pick which one is more likely to fit you best.