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.
Tex-Mex is most popular in the state of Texas. Though Tex-Mex is often conflated with the Southwest cuisine found in Arizona, New Mexico, Colorado, and Utah, they are not synonymous.he word Tex-Mex first entered the English language as a nickname for the Texas Mexican Railway, chartered in southern Texas in 1875.