We don't have synonyms for smelling salt yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are smelling salts.
(n) :
(usually in the plural) ammonium carbonate, sometimes with added perfume, that is inhaled as a mild irritant to the mucous membranes, to help restore consciousness.
(n) :
(usually in the plural) ammonium carbonate, sometimes with added perfume, that is inhaled as a mild irritant to the mucous membranes, to help restore consciousness.