All Sinol and Sinol-M products are zinc-free. No loss of smell (anosmia) has been reported in association with the use of Sinol or Sinol-M nasal sprays. In a clinical study of Sinol and Sinol-M in patients with persistent allergies, no side-effects associated with loss of smell were reported.1
1. Kaliner M, White M, Tzachev C, Efessiou C, Farrar J, Miller J, Popov T. Assessment of Two Capsaicin Containing Solutions for Symptoms Relief in Subjects with Persistent Allergic Rhinitis. 2009, Poster #22; Presented at the Western Society of Asthma, Allergy & Immunology meeting.
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