Do not exceed the dose recommended.

Cialis could be dangerous if mistreated and if there is an overdose, the following symptoms are feasible: pain in the back, acid indigestion, flushing, heartburn ( pyrosis ), stale or runny nose, priapism, and hassle (a unusually long and unpleasant erection that can trigger damage to the cells of the penis).

If you are uncertain whether your medication includes nitrates, speak with your doctor or speak with a pharmacologist.