II. Causes: Cardiovascular

III. Causes: Nasal Preparations

  1. Intranasal Zinc
  2. Nasal Sprays in general

V. Causes: Miscellaneous

  1. Chemotherapy
    1. Antiproliferative drugs (e.g. Cisplatin)
  2. Antirheumatic Drugs (e.g. Penicillamine)
  3. Antithyroid Medications
  4. Antidepressants
  5. Anticonvulsants
  6. Azelastine (Antihistamine)
  7. Zopiclone (for Insomnia)

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