Whether drunkenness is a mortal sin?

❌ Objection 1 : It would seem that drunkenness is not a mortal sin. For Augustine says in a sermon on Purgatory [*Serm. civ in the Appendix to St. Augustine's works] that "drunkenness if indulged in assiduously, is a mortal sin." Now assiduity denotes a circumstance which does not change the species of a sin; so that it cannot aggravate a sin infinitely, and make a mortal sin of a venial sin, as shown above (FS, Question [88], Article [5]). Therefore if drunkenness /is not a mortal sin for some other reason, neither is it for this.

❌ Objection 2 : Further, Augustine says [*Serm. civ in the Appendix to St. Augustine's works]: "Whenever a man takes more meat and drink than is necessary, he should know that this is one of the lesser sins." Now the lesser sins are called venial. Therefore drunkenness, which is caused by immoderate drink, is a venial sin.

❌ Objection 3 : Further, no mortal sin should be committed on the score of medicine. Now some drink too much at the advice of the physician, that they may be purged by vomiting; and from this excessive drink drunkenness ensues. Therefore drunkenness is not a mortal sin.