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.
Some medicines can affect blood sugar levels. 1  Aspirin can lower blood sugar if taken in large amounts. 2  Phenylephrine, epinephrine, and ephedrine can raise blood sugar and blood pressure levels. Phenylephrine, epinephrine, and ephedrine are found in asthma medicines, cold remedies and herbal teas.