Nasal insufflation, or inhalation, involves the local application of a drug to the mucous membranes of the nose to achieve a systemic action. This represents an effective delivery route of antidiuretic hormone (vasopressin) and its analogs in the treatment of diabetes insipidus.

How are Intranasals administered?

They are sprayed into the nostrils, usually to produce a local effect directly inside the nose. Some nasal sprays are used to administer medicine that acts on other parts of the body. In these cases the medicine is taken into the bloodstream from the lining of the nose, which has many blood vessels.

What is intranasal use?

This method is employed by illicit drug users and involves "sniffing" a highly concentrated powder form of drug or medication through a nostril, with subsequent absorption of drug through the nasal mucosa.

How do you increase nasal absorption?

Strategies for the exploitation of absorption enhancers for the improvement of pulmonary or nasal administration are discussed, including use of surfactants, cyclodextrins, protease inhibitors, and tight junction modulators, as well as application of carriers such as liposomes and nanoparticles.

What is nasal drug delivery?

Nasal drug administration has been used as an alternative route for the systemic availability of drugs restricted to intravenous administration. This is due to the large surface area, porous endothelial membrane, high total blood flow, the avoidance of first-pass metabolism, and ready accessibility.

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17 related questions found

How do you administer intranasal medication?

When you're finally ready to administer the dose of any given medication through the intranasal route, make sure to insert the atomizer firmly into the nose and aim it slightly to the top of the ear on the same side of the nostril being used.

How is nasal route done?

Nasal administration, popularly known as snorting, is a route of administration in which drugs are insufflated through the nose. It can be a form of either topical administration or systemic administration, as the drugs thus locally delivered can go on to have either purely local or systemic effects.

Does nasal Spray reach the brain?

When delivered through the nose, the spray medication can enter the brain directly via the olfactory nerve. “The trick here is to administer the drug through the back door to the brain, since the front door is sealed so tightly,” Mishra says.

What are the choice of liquids for application in nostrils?

The liquid nasal formulations are mainly aqueous solutions, but suspensions and emulsions can also be delivered. Liquid formulations are considered convenient particularly for topical indications where humidification counteracts the dryness and crusting often accompanying chronic nasal diseases [3].

What is the difference between intranasal and inhalation?

Intranasal instillation of virus in a liquid suspension (IN) is the most frequently employed method to inoculate small mammalian models with influenza virus, but does not reflect a natural route of exposure. In contrast, inoculation via aerosol inhalation (AR) more closely resembles human exposure to influenza virus.

Is intranasal parenteral?

For small therapeutic molecules, various routes for drug administration are parenteral (intravenous, intramuscular, and subcutaneous), oral, nasal, ocular, transmucosal (buccal, vaginal, and rectal), and transdermal.

Is the nasal cavity lined with mucosa?

The nasal mucosa lines the nasal cavity. It is part of the respiratory mucosa, the mucous membrane lining the respiratory tract. The nasal mucosa is intimately adherent to the periosteum or perichondrium of the nasal conchae.

How many mL Can you give intranasal?

Intranasal medications are typically administered using a mucosal atomization device (MAD), with a commonly recommended optimal VOA of approximately 0.3 mL and a maximum VOA of 1 mL.

What is intranasal oxytocin?

Intranasal oxytocin delivery is purported to increase central oxytocin concentrations via channels surrounding trigeminal and olfactory nerve fibers, which may facilitate increased activity at central oxytocin receptors.

What drugs can be given intranasally?

Based on the published literature, intranasal administration of fentanyl, sufentanil, ketamine, hydromorphone, midazolam, haloperidol, naloxone, glucagon, and, in limited cases, flumazenil may be a safe, effective, and well-tolerated alternative to intramuscular or intravenous administration in the prehospital and ED ...

Are nasal preparations sterile?

Nasal preparations may be absorbed and a systemic effect may be seen. Ophthalmic preparations (solutions and suspensions) are sterile aqueous preparations with other qualities essential to the safety and comfort of the patient.

Do nasal sprays need to be sterile?

Sterility-Nasal preparations should be sterile. ... Most nasal preparations are packaged in glass dropper bottles or plastic spray bottles, usually containing 15 to 30 mL of product.

How do you give a newborn nasal drops?

How to Put Nose Drops into the Child's Nose

1. Lay your baby on his back.
2. Put 3-4 drops into each nostril using the nose dropper. ...
3. After giving the nose drops, hold your baby with his head back for about a minute. ...
4. Do not use any other type of medicine nose drops unless prescribed by the doctor.

Is it OK if nasal spray goes down throat?

If the pump spray is used correctly, the spray should not drip from your nose or down the back of your throat. If your nose hurts, if you begin to have nosebleeds, or if the inside of your nose stings, stop using the spray for 1 to 2 days.

Can nasal spray cause stroke?

Use of OTC sympathomimetic nasal spray can be an independent risk factor for stroke and this should be considered in the evaluation of causes of stroke. The rare risk of stroke associated with sympathomimetic nasal sprays should also be discussed with patients before prescription of such therapy.

Can prolonged use of nasal spray side effects?

The longer you use a spray decongestant, the more likely you are to get the rebound phenomenon. It can lead to chronic sinusitis and other serious, long-term problems. Give your doctor a call if you're having any of these issues: It's all in your nose.

How do you use intranasal mucosal atomization device?

Hold the top of the head stable and place the MAD in the nostril.
...

1. Consider the maximum medication volume that can be given per nostril for optimal absorption (see table below). ...
2. Hold the MAD in the nostril for 5 to 10 seconds to ensure absorption.
3. If supine, move the child to the recovery position on either side.

What is intraocular route of administration?

The three primary methods of delivery of ocular medications to the eye are topical, local ocular (ie, subconjunctival, intravitreal, retrobulbar, intracameral), and systemic. The most appropriate method of administration depends on the area of the eye to be medicated.

What route can be used to administer solid drugs?

Oral administration

This is the most frequently used route of drug administration and is the most convenient and economic. Solid dose forms such as tablets and capsules have a high degree of drug stability and provide accurate dosage.

How is nitroglycerin usually given by the EMT?

Sublingual nitroglycerin is typically administered one tablet or spray every five minutes up to three doses. Some prehospital protocols recommend continuing dosage and even administering higher dose nitroglycerin two to three sublingual doses together in cases of hypertensive congestive heart failure.