Denne højest opnåelige dosis på 48, 7 mikrogram/ kg/ dag var også et nul- effekt- niveau (NOAEL) (no observed adverse effect level), som evalueret i inhalationstoksicitetsstudier hos rotter i op til 26 uger.
This highest achievable dose of 48.7 micrograms/ kg/ day was also the “ no observed adverse effect level” (NOAEL) as evaluated in inhalation toxicity studies in rats up to 26 weeks.