**3.1 Product stability and degradation**

Pharmaceutical products are sensitive to heat and moisture, and the drying process can cause degradation, which can lead to changes in the chemical and physical properties of the product. The stability and shelf-life of a drug depend on its formulation and the conditions under which it is stored. Heat and moisture can cause changes in the drug**'**s molecular structure, leading to loss of potency and reduced efficacy. Therefore, it is crucial to optimize the drying conditions to avoid excessive exposure to heat and moisture.
