its a schedule one drug in the US - it has no medical use according to the fda - everyone else especially in Thailand calls it the magic mushroom basically it is illegal in most countries - very dangerous
only while you are high
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its no wonder - Fentanyl is a highly potent synthetic piperidine opioid primarily used as an analgesic. It is 30 to 50 times more potent than heroin and 100 times more potent than morphine;
normally used for pain relief for cancer patients in their last stage. I hoped you changed doctors!
I cannot find any reference for the use of Tadalafil in pain management
it is used to treat pulmonary hypertension , benign prostatic hyperplasia and its better know use to treat erectile dysfunction. In fact a common side effect is back pain.
I assume that you had a ancestry DNA test with traits. one must remember that environment can change or enhance generic traits. ie I have a high pain tolerance but that may be that I was a long distance runner and a rower - I ran 1mile to 16 mile track events and 2 double marathons - now...