Which state are you in? Eg California you'd also pay 9.3% on $58,635 to $299,508, which gets you to 41% (approx), which gets you within spitting distance of Germany's 42%. Add on the fact that you'd pay a decently sized deductable for any real amount of healthcare, and it's starting to look, all-in, that we're getting a raw deal with our US healthcare "system". Yearly "deductible" for a swedish national under their system? ~$100.
In Germany the public healthcare providers are indeed subsidized by taxes (about ~170€ per citizen per year), but the bulk of financing comes from monthly (salary based) fees payed directly to the healthcare providers, which is around 100€ for anyone that is out of the education system and goes up to around 800€ at 58k salary.
German Tax Rates for an individual:
$58,918 - $274,612: 42%
US Tax Rates for an individual:
$40,126 - $85,525: 22%
$163,301 - $207,350: 32%
So, if you make an average salary of roughly 40-90k, you pay a full twice as much in taxes, for an extra $9,228 to $20,700 each year.
That extra ~$10,000 to ~$20,000 dollars you pay in Germany in taxes, then (a portion of it) goes to pay for the health care.
The drug isn't just magically cheaper, they just pay for it via taxes instead.