What is pseudoefedrinklorida?

It seems like there might be a typographical error in your question, as "pseudoefedrinklorida" does not correspond to any known term or substance. If you meant "pseudoephedrine," it is a medication commonly used as a decongestant to relieve nasal congestion caused by colds, Allergies, or sinus infections. If you meant something else, please clarify for a more accurate response.