What is the proper dosage of Claritin (loratadine) anti-histamine and what are the side effects if taken daily?

Sometimes sedation. Most of the time, Claritin (loratadine) has few side effects, but in 8% of people, it can be sedating. Rare serious side effects :fast or uneven heart rate; feeling like you might pass out; jaundice (yellowing of your skin or eyes); or seizures (convulsions). Less serious side effects may include: headache; nervousness; stomach pain, diarrhea; dry mouth, sore throat.