Tadalafil (also known as Cialis) is a phosphodiesterase-5 inhibitor, which increases the amount of cyclic guanosine monophosphate in your body. Cyclic guanosine monophosphate is a chemical that helps the smooth muscles of your penis to relax. In addition, it also increases blood flow to the penis. The combined result is that you are able to develop and maintain an erection.
Tadalafil is also used to treat other diseases, such as pulmonary arterial hypertension. If left untreated, pulmonary arterial hypertension can cause heart failure and death.
PT-141 also helps you to develop and maintain an erection, but it works by acting on the central nervous system and enhacing sexual desire and arousal. Your central nervous system then releases chemicals that result in an erection.
The Blood Flow Protocol by Maximus contains both PT-141 and tadalafil, allowing you to experience the powerful benefits of both drugs at the right dosage.
Reference
Barnes H, Brown Z, Burns A, Williams T. Phosphodiesterase 5 inhibitors for pulmonary hypertension. Cochrane Database Syst Rev. 2019;1(1):CD012621. doi:10.1002/14651858.CD012621.pub2
