Cialis - can I cut a 5mg in half or 4?

They can be gently cut in half--in 4 would be impossible.

It comes in 2.5 mg. and 5 mgs. for daily use and 10 mg. and 20 mg for 36 hour use.I take the 5 mg. have had success with that dose. if your doctor prescribed you 5mg. that's what you should take

5 mg is the lowest dose recommended for ed. I doubt it would work if you take less. The other thing is its powdery inside, so if its cut you'd have it losing some amount of drug.