A Portal (of sorts) for Psychoactive Substance Use Disorder Information (and a wee bit more).

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Can be snorted, injected intravenously (sometimes combined with heroin as “speedball”), smoked as “freebase” or “crack”.

Cocaine — The National Institute on Drug Abuse offerings.

Mind Over Matter: Cocaine

This is NIDA’s Mind Over Matter section on Cocaine (as part of NIDA for Teens). It contains articles such as “The Brain’s Response to Cocaine”, “Miscommunication in the Brain”, “Cocaine Can Change the Way the Brain Works”, “Cocaine Tightens Blood Vessels”, and “Scientists Discover Answers”.

Cocaine – The National Library of Medicine

Cocaine — The cocaine information page from the National Library of Medicine MedlinePlus information service.

tl;dr: Be careful of the tendency to chase that first high; it can become a never ending search.