just a quick reminder, if ur ever gonna experiment with drugs, PLEASE test your substances, and use harm-reduction practices. this is a link to test kits, i will also drop a thread of helpful links for further harm reduction below <3 https://testkitplus.com/
here is a link to a great chart for drug combination interactions, be sure to read the information before looking at the chart, and only use this as a quick reference sheet. if there are any warnings, be sure to further research the effects
https://wiki.tripsit.me/wiki/Drug_combinations
https://wiki.tripsit.me/wiki/Drug_combinations
this entire website is great for quick information on a variety of substances, and for an example, i used tramadol (which is extremely dangerous if used improperly), but you can check these pages for dosages which vary by method, effects, etc,
http://drugs.tripsit.me/tramadol
http://drugs.tripsit.me/tramadol
this websites ui is extremely outdated, but still contains great info
https://www.erowid.org/chemicals/mdma/mdma.shtml
https://www.erowid.org/chemicals/mdma/mdma.shtml
psychonaut wiki provides much more detailed info and analysis on a wide variety of substances compared to tripsit, but can also be a little reading-heavy, so i originally provided tripsit for people who get overwhelmed https://psychonautwiki.org/wiki/2C-B#Subjective_effects
feel free to drop more links, but please ensure all of your resources are safe to use and are not misinformative <3