Not illegal. After inspection, Teyi Jiedu Capsule is a drug approved by the State Medical and Drug Administration, and it is an ideal Chinese medicine for drug rehabilitation that is safe, economical, effective, easy and convenient. Teyi Jiedu Capsule is the latest breakthrough in the field of drug dependence treatment, which belongs to the most ideal, safest and non-addictive clinical drug as of July 25, 2022. This medicine supports express cash on delivery, which is not illegal.