The dosage depends on your age and the severity of your symptoms.
Claritin is active in the body for at least 24 hours.
Take it for the first time when you will be at home for a few hours in case it makes you sleepy.
Do not take either of these medicines and then consume alcohol.
Alcohol may multiply side effects and make you dangerously drowsy.
Zyrtec and Claritin are both priced about the same.
They’re available over the counter, so prescription drug insurance will likely not cover any portion of their expense.