Displaying 18 results of Terbinafine Impurities Terbinafine is a medication used to treat fungal infections. However, during its manufacturing process, impurities can sometimes be introduced. These impurities can affect the quality and safety of the medication, and therefore it is important to monitor and control their levels. Some of the common impurities in terbinafine include related compounds, solvent residues, and degradation products. Proper identification and control of these impurities is crucial for ensuring the efficacy and safety of terbinafine.