Well, I am glad you looked this up. Because I was of the same thought. Why or what exactly is this?
Cocaine hydrochloride nasal solution is used to numb the mucous membrane inside the nose before a medical procedure or surgery.
Cocaine hydrochloride is a pure version of cocaine. It is also known as cocaine hydrochloride salt and can be dissolved in water to make a solution.
Cocaine hydrochloride has approved prescription drug forms in the United States and other parts of the world. It is legally available as a nasal spray and a topical (skin) solution. However, it can be habit-forming even in this form.
https://www.arkbh.com/illicit-drugs/cocaine/hydrochloride/
From the DoJ website:
What is powdered cocaine?
Powdered cocaine (cocaine hydrochloride) is a stimulant that is extracted from the leaves of the coca plant, which is native to South America. In the late 19th century cocaine was used as an anesthetic, but the availability of safer drugs rendered many of its medical applications obsolete. Today powdered cocaine is abused for the intense euphoric effects it produces.
... What does it look like?
Cocaine typically is sold to users as a fine, white, crystalline powder.
How is powdered cocaine abused?
Powdered cocaine typically is snorted (inhaled through the nose), although it may be dissolved in water and injected. When snorted, the drug is absorbed into the bloodstream through the nasal membranes. The drug reaches the brain—and produces its euphoric effect—within 3 to 5 minutes. When injected, the drug is released directly into the bloodstream and reaches the brain within 15 to 30 seconds....
Is powdered cocaine illegal?
Yes, powdered cocaine is illegal. Powdered cocaine is a Schedule II substance under the Controlled Substances Act. Schedule II drugs, which include PCP and methamphetamine, have a high potential for abuse. Abuse of these drugs may lead to severe psychological or physical dependence.