Assertion: decongestant's effect | /r/HasProperty | nar
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text: In 1980, a study of pseudoephedrine was published which showed comparable effects of pseudoephedrine 60mg, 120mg and 180mg in reducing the effect of histamine on nasal airway resistance (NAR), all of which were significantly greater than with placebo (P< 0.05).6 Small, but statistically significant increases in pulse and systolic blood pressure occurred after pseudoephedrine 120mg and 180mg, but not after pseudoephedrine 60mg, 30mg or 15mg.