Can cialis be taken with ibuprofen?

Yes, as long as you follow the recommended doses.
Viagra is known to cancel the effects of painkillers. there are many types of aspirin so it is not best to generalize your question with "aspirin". There have been studies but nothing seems to be proof positive. There have been reports of gastral problems like aching and swelling. But it seems that no one has died of it. I would go for not using any aspirin with Viagra. and with gastral pains as a possible side effect...well I know I couldn't perform with my stomach in pain.