The answer is yes. In Texas, "intoxication" is defined as not having the normal use of your mental or physical faculties by reason of the introduction of alcohol, a drug, a dangerous drug, or any combination. Thus, if an individual has lost the normal use of the mental or physical faculties by reason of the introduction of marijuana or any drug, that individual can be charged with DWI. A DWI arrest can result in a losing your drivers license. In addition, if the police find any marijuana in your vehicle or on your person you mill most likely be charged with possession of a marijuana. A conviction for possession of marijuana will result in a loss of your Texas drivers license. Any arrest is a serious matter and you should consult with an experianced attorney.