Heppah

Pharmaceutical (drug), common

For 2 hours after inhaling a dose of heppah the user has advantage on Initiative checks and saving throws made against sleep and exhaustion. When the dose wears off, the user gains one level of exhaustion, and must succeed on a DC 12 Constitution saving throw or become addicted to the drug. When an addicted creature finishes a long rest, it becomes poisoned until it uses a dose of heppah.