This book includes volumetric analysis and gravimetric analysis. Volumetric analysis includes various titrimetric analytical techniques, viz. acid-base titration, redox titrations, precipitation titration, non-aqueous titration, and complexometric titrations. Each and every technique is useful for a specific category of drugs. Gravimetric analysis methods are other classical methods, which are based on the estimation of unknown drugs by converting them into a suitable stable form and measuring their weight.