There is a type of spice that contains a narcotic material. Can we use it?

Fatwa, posted 4.22.2010, from Iraq, in:
Religious Authority: 
Ali al-Sistanti
Website URL: 
http://www.sistani.org/
Fatwa Question or Essay Title: 
There is a type of spice that contains a narcotic material. Can we use it?
Websites and Institutions: 
The Official Website of Grand Ayatollah Al Uzma Seyyid Ali al-Sistani

Yes, it is permissible to use it.

(مادة عطریة) المتوفر في الاسواق یقال انه یحتوي مادة مخدرة فهل مسموح اضافته علی الاکل ام به تحریم؟یجوز ولایجب الفحص

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