What is the strongest codeine-containing cough suppressant in Austria?

Hello, I would like to know what the strongest codeine-containing cough suppressant is that can be prescribed in Austria. I was recently prescribed Paracodin drops (15 ml, 8.3 mg dihydrocodeine) from Teo Pharma, but they helped me absolutely nothing. And the pharmacy told me they're one of the strongest you can get… So, if you…