Combining substances such as 2C-B (a psychedelic phenethylamine) and "speed paste" (a colloquial term often associated with certain forms of methamphetamine) can pose significant health risks. Both substances affect the central nervous system but in different ways, leading to unpredictable effects and increased potential for adverse reactions.
Here are a few considerations:
1. **Cardiovascular Effects**: Both 2C-B and methamphetamine can


