The signs and symptoms of using heroin can include:

• Confusion
• Decreased blood pressure and heart rate
• Dry mouth
• Slurred/slow speech
• Reduced coordination
• Nausea and vomiting
• Suppressed cough reflex
• Reduced sexual urges
• Lethargy
• Drowsiness
• Constipation
• Constricted pupils
• Slowed breathing

The consequences of using heroin may include:

• High risk of addiction
• Mood swings
• Depression
• Menstrual irregularity and infertility in women
• Loss of sex drive in men
• Anxiety disorders
• Chronic constipation
• Infection at the site of injections
• HIV and hepatitis infections through needle sharing
• Non-fatal overdose
• Death from overdose