I had no problem with 300 mg of Tyro, then I doubled it in hopes of increasing dopamine. 600 mg was enough to send my BP through the roof. Unfortunately, I had been also doing Isometrics and Chi Kung so I can't blame the Tyro with objective confidence. Non the less, it was a frightful experience and I vowed never to take a double dose of Tyro again.
Found that stretching exercises were the antidote (the polar opposite of long duration Isometrics). Still, had I not been in decent shape (low carb), I wonder how much worse my cardiovascular sys would have fared... Thus, with Tyro (IMHO) a larger dose is NOT necessarily better. I think such a warning on the label would be wise. Lawyers await teeth knashing...
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