Whats the difference between sildenafil and tadalafil?

Tadalafil has two formulations – one that can be taken ‘as required’, and one that can be taken daily. The ‘as required’ Tadalafil (generic Cialis) has an advantage over Sildenafil in that it lasts a lot longer – up to 36 hours (compared with 4-5 hours for Sildenafil).Jul 4, 2019

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