Due to growing preference noninvasive medical treatment for various ailments, the intra-nasal route of drug administration is gaining popularity. Not only it reduces pain and infections; it allows the patient the patient to self-administer drugs independently. Recent research has also pointed out its applications related to drug delivery to the brain. Nasal drugs market also have lesser side effects compared to other drugs. Due to nasal drugs, the concept of bioavailability is becoming popular, which is defined as the proportion of a drug that enters the human body via systemic circulation as compared to the dosage. The popularity of inhalers is driving the market.