Tadalafil is an oral medication recommended for the treatment of erectile dysfunction. Certain medications and food should be avoid while taking the ED medication as it can cause interaction and side effects. Avoid the following while taking Tadalafil (not a complete list, taking advise from healthcare professional is recommended):
Other oral erectile dysfunction medicines.
Avoid taking nitrates
Medicines for treating PAH and BPH
Avoid alcohol while taking Tadalafil, to know in details about this interaction read the blog provided below.