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, who probably originated as a nomadic tribe in northern Mexico, arrived in Mesoamerica around the beginning of the 13th century.
The Aztecs were a Pre-Columbian Mesoamerican people of central Mexico in the 14th, 15th and 16th centuries.They called themselves Mexica (pronounced [meËÊikaÊ]).The Republic of Mexico and its capital, Mexico City, derive their names from the word Mexica. The capital of the Aztec empire was Tenochtitlan, built on a raised island in Lake Texcoco.hey called themselves Mexica (pronounced [meËÊikaÊ]). The Republic of Mexico and its capital, Mexico City, derive their names from the word Mexica. The capital of the Aztec empire was Tenochtitlan, built on a raised island in Lake Texcoco.