2 doctors weighed in:

How long does Claritin (loratadine) d stay in your system?

2 doctors weighed in
Dr. Michael Zacharisen
Internal Medicine - Allergy & Immunology
1 doctor agrees

In brief: 3-5 days

The average half-life of Claritin (loratadine) is 8 hours meaning that half the dose is gone/metabolized after 8 hours and after 8 more hours another half is gone.
Doing the math, the Claritin (loratadine) is effectively out of a person's system in 3-5 days, except in geriatric patients it could possibly take up to 10 days.

In brief: 3-5 days

The average half-life of Claritin (loratadine) is 8 hours meaning that half the dose is gone/metabolized after 8 hours and after 8 more hours another half is gone.
Doing the math, the Claritin (loratadine) is effectively out of a person's system in 3-5 days, except in geriatric patients it could possibly take up to 10 days.
Dr. Michael Zacharisen
Dr. Michael Zacharisen
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