Contact Us

Find Help and Treatment

NIDA does not provide medical advice. For medical advice, we strongly urge you to contact a qualified health care provider.

The National Helpline provides 24-hour free and confidential referrals and information about mental and/or substance use disorders, prevention, treatment, and recovery in English and Spanish.

SAMHSA's National Helpline
800-662-HELP (4357)
TTY: 800-487-4889

For additional information on finding help and treatment options, visit

General Inquiries

The information and email services on this Web site cannot provide personalized medical advice about conditions or treatments. The resources on this site should not be used as a substitute for professional medical care. Contact your medical care providers for answers to personal health questions. We also do not rate or provide referrals to physicians or health care facilities. Such activities are usually handled by state or local governments.

International Inquiries

Visit the NIDA International Program ( and learn about international collaboration on research, funding, research training fellowships, scientific meetings, educational opportunities, and tools to identify international researchers. For international questions and requests, submit your query through the NIDA International Program Contact Form. The International Program will respond to your message within 3 to 5 business days.

For international public inquiries requesting more information about specific substance use services and/or resources in their countries see the following links below.

Mail & Phone

Office of Science Policy and Communications
National Institute on Drug Abuse
3WFN MSC 6024
301 North Stonestreet Ave 
Bethesda, MD  20892
301-443-1124 (general inquiries)
301-443-6245 (press inquiries)
For courier deliveries use: Rockville, MD  20850

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