Related by context. Frequent words. (Click for all words.) 71 inhalation 68 inhaling 66 inhale 61 ingested 56 inhales 53 ingesting 51 respiratory tract 50 lungs 50 respiratory 49 aerosol 49 odorless 49 allergic reaction 48 fumes 48 inhaler 48 exhaled 47 ingest 46 particulates 46 asthmatic 46 nasal passages 46 dosed 46 nicotine 46 lung 46 bloodstream 45 allergic 45 nostrils 45 snorted 45 ingests 45 intravenously 45 cigarette smoke 45 intranasal 44 powdered 44 ingestion 44 anaphylactic shock 44 metabolized 44 active ingredient 44 skin irritation 44 asthma 44 water soluble 44 smoked 44 vapors 44 pungent odor 43 mucous membranes 43 carbon monoxide 43 nebulizer 43 toxic fumes 43 severe allergic reaction 43 excreted 43 nasal spray 43 sprayed 43 sprays 43 surfactant 42 injectable 42 trace amounts 42 mucus 42 toxin 42 burning sensation 42 nitrous oxide 42 mucous 42 sneezed 42 lung diseases 42 antihistamine 42 neurotoxin 42 chlorine 42 carcinogenic 42 stuffy nose 42 administered orally 42 micrograms 42 allergic reactions 42 capsaicin 42 exhales 42 spray 42 soluble 42 toxic gases 41 hydrochloric acid 41 nasal sprays 41 analgesic 41 chronic lung 41 inhalers 41 tiny particles 41 lung disease 41 smelled 41 carcinogens 41 flavoring 41 airway 41 muscle relaxant 41 fentanyl 41 granules 41 exhale 41 acetaldehyde 41 acetone 41 exhaust fumes 40 respiratory distress 40 huffing 40 lozenge 40 asbestos fibers 40 albuterol 40 vapor 40 lung tissue 40 carbon monoxide CO 40 hydrogen sulphide 40 vaporizes