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LDN Direct

Sajad Zalzala, MD (Dr Z) is Board Certified in Family Medicine.  He currently serves as the Vice President of the International College of Integrative Medicine (ICIM) and has a special interest in Holistic/Functional Medicine.  He has been using Low-Dose Naltrexone (LDN) as a powerful tool in his practice for the last 5 years.  In addition to his private family practice clinic, he is licensed in 47 states and provides telemedicine consultations. 

He is the Founder of Root Causes Medicine Clinic ( which merges functional and conventional models of medicine to offer in-depth comprehensive personalized treatment plans, using insurance coverage for appointments, lab testing, and prescriptions. Working 100% remotely, we operate in all 50 US states including Washington DC, Ontario, British Columbia, and Manitoba Canada.

He also offers HIPAA-compliant video consultations to help patients obtain prescriptions for LDN through his telemedicine service LDN Direct (