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.
Symptoms of dry mouth include: 1  A sticky, dry feeling in your mouth. 2  Trouble swallowing. 3  A burning sensation on your tongue.  A dry feeling in your 1  throat. Cracked lips.  Reduced ability to taste things or a metallic taste in your 1  mouth. Mouth 2  sores. Frequent bad 3  breath. Difficulty chewing/speaking.