Definition of tush. : a long pointed tooth; especially : a horse's canine.
Common causes of low blood sugar include the following: 1  Overmedication with insulin or antidiabetic pills (for example, sulfonylurea drugs) 2  Use of medications such as beta blockers, pentamidine, and sulfamethoxazole and trimethoprim (Bactrim, Septra) 3  Use of alcohol.  Missed meals.
1 Asthma, which beta blockers can make worse. 2  Diabetes or hypoglycemia because beta blockers can cause the blood sugar levels to rise or hide the symptoms of low blood sugar.  Heart disease or poor circulation in the hands or feet.