(A) not having the normal use of mental or physical faculties by reason of the introduction of alcohol, a controlled substance, a drug, a dangerous drug, a combination of two or more of those substances, or any other substance into the body; or
(B) having an alcohol concentration of 0.08 or more.
So we need to watch out for those cold and allergy medicines and prescription drugs that warn about not driving and operating heavy machinery.
I also stumbled on something else I didn't know: Driving while intoxicated with a child passenger (<16 years old) is a state jail felony. The next step up in seriousness from a Class A misdemeanor.
Texas is real tough on DWI
