If I use Trimix one day, is it ok to use Viagara or Cialis later that same week?

[KaBoom]

Or does mixing pills in between mess things up?

My issue is sometimes I prefer the longevity of the pill (viagara has 4-5 hour window, Cialis about 24 hrs, down from 48 when I first started using it).

With injection its a one shot deal, and then not again for at least 24 hours.

Obviously I would never do an injection within the working timeframe of a pill.... or vice versa. But should one not use different methods even days later after injection?