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.
A bitter taste in the mouth that is not from a bitter substance is a distorted sense of taste. A persistent bad taste in the mouth, whether bitter, metallic or foul, is called dysgeusia.A lack of, or change in, taste often occurs when something interferes with the normal taste process.regnancy or taking certain medications, such as antibiotics, may result in a temporary bitter taste in the mouth as well. Your sense of taste can also be impaired or distorted permanently from long-term smoking or injuries to the mouth, nose or head. Health Stories: Read how this real patient found the right care.