: Causes heart palpitations, high blood pressure, and increased risk of heart attack or stroke.
Mephedrone is a powerful synthetic stimulant that carries severe health risks, including:
: Can lead to severe nosebleeds (if snorted), overheating (hyperthermia), seizures, and "blue fingers" due to restricted circulation. Mephedrone - Alcohol and Drug Foundation
: Crystals sold online are often highly impure or "cut" with dangerous substances like caffeine or benzocaine. Health Dangers
: Authorities actively monitor online sales and "dark web" transactions.