
Approved drug: A medication approved for marketing. In the US, the Food and Drug Administration (FDA) must approve a substance as a drug before it can be marketed. The approval process involves several steps including pre-clinical laboratory and animal studies, clinical trials for safety and efficacy, filing of a New Drug Application by the manufacturer of the drug, FDA review of the application, and FDA approval/rejection of application.

The reason that Claritin, Claritin D and other allergy medications raise blood pressure is not usually due to the Loratadine component, but to pseudoephedrine. Raised blood pressure can be a consequence of any allergy medicine containing pseudoephedrine, not just Claritin.

Itching: An uncomfortable sensation in the skin that feels as if something is crawling on the skin or in the skin, and makes the person want to scratch the affected area.

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