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Ear Preparations: Definition, Types, Composition, Properties, Advantages, Disadvantages

Ear preparations, also known as otic formulations, are specialized pharmaceutical products intended for administration into the external auditory canal. They are used for local treatment of ear conditions such as…

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Nasal Preparations: Definition, Types, Composition, Properties, Advantages, Disadvantages

Nasal preparations are pharmaceutical dosage forms designed for administration through the nasal route. They are formulated to deliver drugs either locally to the nasal cavity or systemically via absorption through…

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Suppositories and Pessaries: Definition, Types, Composition, Properties, Advantages, Disadvantages

Suppositories Suppositories are solid dosage forms designed for insertion into body cavities such as the rectum, vagina, or (occasionally) the urethra, where they melt, dissolve, or soften to release their…

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