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The dose you have taken is excessively high. I don't know your motive behind doing this. You should go to emergency now, as this dose can take your life.
Sch high dose of Claritin can cause excessive sedation and drowsiness, leading to aspiration and death.
Attend emergency, they will do a gastric lavage and remove all the excessive unabsorbed medicine and will keep you under observation. You should drink plenty of water and try to vomit out. Avoid driving to ER by your self.
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