Does viagra and amitriptyline interact?

There are no known interaction between Viagra and Amitriptyline. However, both Amitriptyline and Viagra are metabolized in the liver and their interact is possible. I think that there were no conducted any clinical trials which could determine the possible drugs interact of amitriptyline and viagra, I think you can use both of these drugs, and if you notice any side effects, make sure to consult your physician