Tacrolimus is the generic version of the topical drug Protopic, which is used  to treat eczema (a skin condition that causes redness, dryness, and itchiness). The prescription medicine is in a class of drugs known as topical calcineurin inhibitors.
Merge this question into. Split and merge into it. Answer by Briesmom. Confidence votes 9. It is impossible to taste substances with a dry tongue because when the tongue is wet, the wetness releases the action of tasting.the tongue has to be wet so that the afferent fibers from the taste buds can send the chemical compounds to the brain to be identified.erge this question into. Split and merge into it. Answer by Briesmom. Confidence votes 9. It is impossible to taste substances with a dry tongue because when the tongue is wet, the wetness releases the action of tasting.
In addition, people with diabetes often complain of bad breath and bitter, metallic, or sour tastes. The bacteria that cause bad breath, taste disturbances, and dry mouth produce sulfide molecules particularly at the back of the tongue â an acidic, sugary, dry, anaerobic environment where bacteria thrive. If left untreated, dry mouth can lead to many oral health issues including gingivitis and gum disease.