Pharmaceutical manufacturers must validate their cleaning process to ensure compliance with cGMP regulations. Minimizing equipment downtime has the potential to impact the efficiency and economics of pharmaceutical production. The main purpose of cleaning validation is to improve the effectiveness and consistency of cleaning in a given pharmaceutical production equipment or prevent cross contamination and adulteration of drug products with other active ingredients like unintended
compounds or microbiological contamination, leads to prevent several serious problems and also useful in related studies like packaging component cleaning validation. So it is necessary to validate the cleaning procedures to ensure safety, efficacy, quality of the subsequent batches of drug product and regulatory requirements in Active Pharmaceutical Ingredients (API) product manufacture. The benefits due to cleaning validation are compliance with federal regulations, identification and correction of potential problems, previously unsuspected which could compromise the safety and efficacy of drug products. In this article cleaning, validation and importance are discussed in brief.