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  1. Excluded Studies - Pharmacologic and Nonpharmacologic Therapies in Adult Patients With Exacerbation of COPD: A ... 
    https://www.ncbi.nlm.nih.gov/books/NBK549047
    ... Bronchitis Patients (HL301: Mixed Extract of Rehmannia Glutinosa, Schisandra and so on). 2014 March. PMID: NCT02250027. [Population ...
  2. MedlinePlus Drug Information: Tacrolimus 
    https://medlineplus.gov/druginfo/meds/a601117.html
    ... Prilosec OTC, Zegerid OTC), St. John's wort, or Schisandra sphenanthera extracts. Be sure to let your doctor ...