What is the most important precaution for the nurse to teach a patient who is prescribed oral valacyclovir (Valtrex)?
a. "Avoid coffee and other caffeinated beverages."
b. "Wear long sleeves and a hat when going outdoors."
c. "Take this drug 1 hour before or 4 hours after eating a full meal."
d. "Drink at least 3 L of water daily for the entire time you are taking this drug."
D
Valacyclovir consists of a type of chemical that can easily turn into crystals. Crystals that form and clump in the kidneys can cause kidney failure or kidney stones. Drinking at least 3 L of flu-ids daily while taking this drug can prevent crystallization in the kidneys.
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