Moisture content determination is an important quality control test in pharmaceutical manufacturing, from the checking of incoming raw materials and in-process control of tablets and capsules to undertaking quality checks of finished drugs as part of pharmacopeial testing procedures. Moisture testing is also one of the critical quality parameters in the stability testing of drugs. This application note describes how halogen moisture analyzers improve quality control throughout the entire pharmaceutical drug manufacturing process with fast and accurate moisture measurements. It further explains how halogen moisture analyzers are in line with regulations as a viable alternative method for determining moisture content.