Table 1.

Overview and composition of tested products A–F

Product	Trade Name	Active Agent	Additives
A	Viruseptin (nasal)	ι- and κ-carrageenan (1.2 and 0.4 mg/mL)	Sodium chloride
B	Viruseptin (oral)	ι-carrageenan (1.2 mg/mL)	Sodium chloride, xylitol, cherry flavor
C	Nasic (nasal)	Xylometazoline hydrochloride (0.1%), dexpanthenol (5%)	Benzalkonium chloride, monopotassium phosphate, disodium phosphate dodecahydrate
D	Rhinospray (nasal)	Tramazoline hydrochloride (1.264 mg/mL)	Sodium chloride, citric acid, benzalkonium chloride, menthol, cineol, camphor racemic, sodium hydroxide, magnesium sulfate, magnesium chloride, calcium chloride, sodium hydrogen carbonate, povidone-iodine glycerol 85%, hypromellose
E	Wick Erste Abwehr (nasal)	Hydroxypropyl methylcellulose	Succinic acid, disodium succinate, pyroglutamic acid
F	Wick Sinex Avera (nasal)	Oxymetazoline hydrochloride (0.5 mg/mL)	Sorbitol, trisodium citrate, polysorbate 80, benzyl alcohol, citric acid, benzalkonium chloride, acesulfame potassium, menthol, cineol, sodium edetate, aloe dry extract, l-carvone