The mean time to onset of a 12% increase in FEV1 for PROVENTIL HFA Inhalation Aerosol was 7 minutes and the mean time to peak effect was approximately 50 minutes. The mean duration of effect as measured by a 12% increase in FEV1 was 2.3 hours. In some pediatric patients, duration of effect was as long as 6 hours.
The Aztecs were also known as the Tenochca (from which the name for their capital city, Tenochtitlan, was derived) or the Mexica (the origin of the name of the city that would replace Tenochtitlan, as well as the name for the entire country).
The Mexica founded Mexico-Tenochtitlan in 1325 as an altepetl (city-state) located on an island in Lake Texcoco, in the Valley of Mexico. It became the capital of the expanding Mexica Empire in the 15th century, until captured by the Spanish in 1521.