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Nitroglycerin Lingual Spray

Pronunciation

Generic Name: nitroglycerin
Dosage Form: oral spray, metered

Nitroglycerin Lingual Spray

400 mcg per Spray, 60 or 200 Metered Sprays

Rx Only

Nitroglycerin Lingual Spray Description

Nitroglycerin, an organic nitrate, is a vasodilator which has effects on both arteries and veins. The chemical name for nitroglycerin is 1,2,3-propanetriol trinitrate (C3H5N3O9). The compound has a molecular weight of 227.09. The chemical structure is:

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Nitroglycerin Lingual Spray (Nitroglycerin Lingual Spray 400 mcg) is a metered dose spray containing nitroglycerin. This product delivers nitroglycerin (400 mcg per spray, 60 or 200 metered sprays) in the form of spray droplets onto or under the tongue. Inactive ingredients: dehydrated alcohol, medium-chain partial glycerides, medium-chain triglycerides, peppermint oil.

Nitroglycerin Lingual Spray - Clinical Pharmacology

The principal pharmacological action of nitroglycerin is relaxation of vascular smooth muscle, producing a vasodilator effect on both peripheral arteries and veins with more prominent effects on the latter. Dilation of the post-capillary vessels, including large veins, promotes peripheral pooling of blood and decreases venous return to the heart, thereby reducing left ventricular end-diastolic pressure (pre-load). Arteriolar relaxation reduces systemic vascular resistance and arterial pressure (after-load).

The mechanism by which nitroglycerin relieves angina pectoris is not fully understood. Myocardial oxygen consumption or demand (as measured by the pressure-rate product, tension-time index, and stroke-work index) is decreased by both the arterial and venous effects of nitroglycerin and presumably, a more favorable supply-demand ratio is achieved.

While the large epicardial coronary arteries are also dilated by nitroglycerin, the extent to which this action contributes to relief of exertional angina is unclear.

Nitroglycerin is rapidly metabolized in vivo, with a liver reductase enzyme having primary importance in the formation of glycerol nitrate metabolites and inorganic nitrate. Two active major metabolites, 1,2- and 1,3-dinitroglycerols, the products of hydrolysis, although less potent as vasodilators, have longer plasma half-lives than the parent compound. The dinitrates are further metabolized to mononitrates (considered biologically inactive with respect to cardiovascular effects) and ultimately glycerol and carbon dioxide.

Therapeutic doses of nitroglycerin may reduce systolic, diastolic and mean arterial blood pressure. Effective coronary perfusion pressure is usually maintained, but can be compromised if blood pressure falls excessively or increased heart rate decreases diastolic filling time.

Elevated central venous and pulmonary capillary wedge pressures, pulmonary vascular resistance and systemic vascular resistance are also reduced by nitroglycerin therapy. Heart rate is usually slightly increased, presumably a reflex response to the fall in blood pressure. Cardiac index may be increased, decreased, or unchanged. Patients with elevated left ventricular filling pressure and systemic vascular resistance values in conjunction with a depressed cardiac index are likely to experience an improvement in cardiac index. On the other hand, when filling pressures and cardiac index are normal, cardiac index may be slightly reduced.

In a pharmacokinetic study when a single 0.8 mg dose of Nitroglycerin Lingual Spray was administered to healthy volunteers (n = 24), the mean Cmax and tmax were 1,041 pg/mL • min and 7.5 minutes, respectively. Additionally, in these subjects the mean area-under-the-curve (AUC) was 12,769 pg/mL • min.

In a randomized, double-blind single-dose, 5-period cross-over study in 51 patients with exertional angina pectoris significant dose-related increases in exercise tolerance, time to onset of angina and ST-segment depression were seen following doses of 0.2, 0.4, 0.8 and 1.6 mg of nitroglycerin delivered by metered pumpspray as compared to placebo.

Additionally the drug was well tolerated as evidenced by a profile of generally mild to moderate adverse events.

INDICATIONS & USAGE

Nitroglycerin Lingual Spray is indicated for acute relief of an attack or prophylaxis of angina pectoris due to coronary artery disease.

Contraindications

Allergic reactions to organic nitrates are rare. Nitroglycerin is contraindicated in patients who are allergic to it.

Nitroglycerin Lingual Spray is contraindicated in patients taking certain drugs for erectile dysfunction (phosphodiesterase inhibitors), as their concomitant use can cause severe hypotension. The time course and dose-dependency of this interaction are not known.

Warnings

Amplification of the vasodilatory effects of Nitroglycerin Lingual Spray by certain drugs (phosphodiesterase inhibitors) used to treat erectile dysfunction can result in severe hypotension. The time course and dose dependence of this interaction have not been studied. Appropriate supportive care has not been studied, but it seems reasonable to treat this as a nitrate overdose, with elevation of the extremities and with central volume expansion. The use of any form of nitroglycerin during the early days of acute myocardial infarction requires particular attention to hemodynamic monitoring and clinical status.

Precautions

General

Severe hypotension, particularly with upright posture, may occur even with small doses of nitroglycerin. The drug, therefore, should be used with caution in subjects who may have volume depletion from diuretic therapy or in patients who have low systolic blood pressure (e.g., below 90 mm Hg). Paradoxical bradycardia and increased angina pectoris may accompany nitroglycerin-induced hypotension.

Nitrate therapy may aggravate the angina caused by hypertrophic cardiomyopathy. Tolerance to this drug and cross-tolerance to other nitrates and nitrites may occur. Tolerance to the vascular and anti-anginal effects of nitrates has been demonstrated in clinical trials, experience through occupational exposure, and in isolated tissue experiments in the laboratory.

In industrial workers continuously exposed to nitroglycerin, tolerance clearly occurs. Moreover, physical dependence also occurs since chest pain, acute myocardial infarction, and even sudden death have occurred during temporary withdrawal of nitroglycerin from the workers. In various clinical trials in angina patients, there are reports of anginal attacks being more easily provoked and of rebound in the hemodynamic effects soon after nitrate withdrawal. The relative importance of these observations to the routine, clinical use of nitroglycerin is not known.

Information For Patients

Physicians should discuss with patients that Nitroglycerin Lingual Spray should not be used with certain drugs taken for erectile dysfunction (phosphodiesterase inhibitors) because of the risk of lowering their blood pressure dangerously.

Drug Interactions

Alcohol may enhance sensitivity to the hypotensive effects of nitrates. Nitroglycerin acts directly on vascular muscle. Therefore, any other agents that depend on vascular smooth muscle as the final common path can be expected to have decreased or increased effect depending upon the agent.

Marked symptomatic orthostatic hypotension has been reported when calcium channel blockers and oral controlled-release nitroglycerin were used in combination. Dose adjustments of either class of agents may be necessary.

Concomitant use of nitric oxide donors (like Nitroglycerin Lingual Spray) and certain drugs for the treatment of erectile dysfunction (phosphodiesterase inhibitors) can amplify their vasodilatory effects, resulting in severe hypotension. The concomitant use of these drugs is contraindicated (see CONTRAINDICATIONS) and alternative therapies should be used to treat acute angina episodes.

Carcinogenesis, Mutagenesis, Impairment of Fertility -

Animal carcinogenesis studies with sublingual nitroglycerin have not been performed.

Rats receiving up to 434 mg/kg/day of dietary nitroglycerin for 2 years developed dose-related fibrotic and neoplastic changes in liver, including carcinomas, and interstitial cell tumors in testes. At high dose, the incidences of hepatocellular carcinomas in both sexes were 52% vs. 0% in controls, and incidences of testicular tumors were 52% vs. 8% in controls. Lifetime dietary administration of up to 1058 mg/kg/day of nitroglycerin was not tumorigenic in mice.

Nitroglycerin was weakly mutagenic in Ames tests performed in two different laboratories. Nevertheless, there was no evidence of mutagenicity in an in vivo dominant lethal assay with male rats treated with doses up to about 363 mg/kg/day, p.o., or in in vitro cytogenic tests in rat and dog tissues.

In a three-generation reproduction study, rats received dietary nitroglycerin at doses up to about 434 mg/kg/day for six months prior to mating of the F0 generation with treatment continuing through successive F1 and F2 generations. The high dose was associated with decreased feed intake and body weight gain in both sexes at all matings. No specific effect on the fertility of the F0 generation was seen. Infertility noted in subsequent generations, however, was attributed to increased interstitial cell tissue and aspermatogenesis in the high-dose males. In this three-generation study there was no clear evidence of teratogenicity.

Pregnancy:

Pregnancy Category C -

Animal teratology studies have not been conducted with nitroglycerin-pumpspray. Teratology studies in rats and rabbits, however, were conducted with topically applied nitroglycerin ointment at doses up to 80 mg/kg/day and 240 mg/kg/day, respectively. No toxic effects on dams or fetuses were seen at any dose tested. There are no adequate and well-controlled studies in pregnant women. Nitroglycerin should be given to pregnant women only if clearly needed.

Nursing Mothers -

It is not known whether nitroglycerin is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when Nitroglycerin Lingual Spray is administered to a nursing woman.

Pediatric Use -

Safety and effectiveness of nitroglycerin in pediatric patients have not been established.

Adverse Reactions

Adverse reactions to oral nitroglycerin dosage forms, particularly headache and hypotension, are generally dose-related. In clinical trials at various doses of nitroglycerin, the following adverse effects have been observed: Headache, which may be severe and persistent, is the most commonly reported side effect of nitroglycerin with an incidence on the order of about 50% in some studies. Cutaneous vasodilation with flushing may occur. Transient episodes of dizziness and weakness, as well as other signs of cerebral ischemia associated with postural hypotension, may occasionally develop. Occasionally, an individual may exhibit marked sensitivity to the hypotensive effects of nitrates and severe responses (nausea, vomiting, weakness, restlessness, pallor, perspiration and collapse) may occur even with therapeutic doses. Drug rash and/or exfoliative dermatitis have been reported in patients receiving nitrate therapy. Nausea and vomiting appear to be uncommon.

Nitroglycerin Lingual Spray given to 51 chronic stable angina patients in single doses of 0.4, 0.8 and 1.6 mg as part of a double-blind, 5-period single-dose cross-over study exhibited an adverse event profile that was generally mild to moderate. Adverse events occurring at a frequency greater than 2% included: headache, dizziness, and paresthesia. Less frequently reported events in this trial included (<2%): dyspnea, pharyngitis, rhinitis, vasodilation, peripheral edema, asthenia, and abdominal pain.

Overdosage

Signs and Symptoms

Nitrate overdosage may result in: severe hypotension, persistent throbbing headache, vertigo, palpitation, visual disturbance, flushing and perspiring skin (later becoming cold and cyanotic), nausea and vomiting (possibly with colic and even bloody diarrhea), syncope (especially in the upright posture), methemoglobinemia with cyanosis and anorexia, initial hyperpnea, dyspnea and slow breathing, slow pulse (dicrotic and intermittent), heart block, increased intracranial pressure with cerebral symptoms of confusion and moderate fever, paralysis and coma followed by clonic convulsions, and possibly death due to circulatory collapse.

Methemoglobinemia

Case reports of clinically significant methemoglobinemia are rare at conventional doses of organic nitrates. The formation of methemoglobin is dose-related and in the case of genetic abnormalities of hemoglobin that favor methemoglobin formation, even conventional doses of organic nitrates could produce harmful concentrations of methemoglobin.

Treatment of Overdosage

Keep the patient recumbent in a shock position and comfortably warm. Passive movement of the extremities may aid venous return. Administer oxygen and artificial ventilation, if necessary. If methemoglobinemia is present, administration of methylene blue (1% solution), 1-2 mg per kilogram of body weight intravenously, may be required. If an excessive quantity of Nitroglycerin Lingual Spray has been recently swallowed gastric lavage may be of use.

Warning

Epinephrine is ineffective in reversing the severe hypotensive events associated with overdosage. It and related compounds are contraindicated in this situation.

Nitroglycerin Lingual Spray Dosage and Administration

At the onset of an attack, one or two metered sprays should be administered onto or under the tongue. No more than three metered sprays are recommended within a 15-minute period. If the chest pain persists, prompt medical attention is recommended. Nitroglycerin Lingual Spray may be used prophylactically five to ten minutes prior to engaging in activities which might precipitate an acute attack.

Each metered spray of Nitroglycerin Lingual Spray delivers 48 mg of solution containing 400 mcg of nitroglycerin after an initial priming of 5 sprays. It will remain adequately primed for 6 weeks. If the product is not used within 6 weeks it can be adequately reprimed with 1 spray. Longer storage periods without use may require up to 5 repriming sprays. There are 60 or 200 metered sprays per bottle. The total number of available doses is dependent, however, on the number of sprays per use (1 or 2 sprays), and the frequency of repriming.

The transparent container can be used for continuous monitoring of the consumption. The end of the pump should be covered by the fluid level. Once fluid falls below the level of the center tube, sprays will not be adequate and the container should be replaced. As with all other sprays, there is a residual volume of fluid at the bottom of the bottle which cannot be used.

During application the patient should rest, ideally in the sitting position. The container should be held vertically with the valve head uppermost and the spray orifice as close to the mouth as possible. The dose should preferably be sprayed onto the tongue by pressing the button firmly and the mouth should be closed immediately after each dose. THE SPRAY SHOULD NOT BE INHALED. The medication should not be expectorated or the mouth rinsed for 5 to 10 minutes following administration. Patients should be instructed to familiarize themselves with the position of the spray orifice, which can be identified by the finger rest on top of the valve, in order to facilitate orientation for administration at night.

How is Nitroglycerin Lingual Spray Supplied

Each box of Nitroglycerin Lingual Spray contains one clear glass bottle coated with orange transparent plastic which assists in containing the glass and medication should the bottle be shattered. Each bottle contains 4.9 g or 12 g (Net Content) of Nitroglycerin Lingual Spray which will deliver 60 or 200 metered sprays containing 400 mcg of nitroglycerin per spray after priming.

Nitroglycerin Lingual Spray is available as follows:

60-dose (4.9 g) single bottle (NDC 45802-210-01)

200-dose (12 g) single bottle (NDC 45802-210-02)

Store at 20-25°C (68-77°F) [see USP Controlled Room Temperature].

Note: Nitroglycerin Lingual Spray contains 20% alcohol. Do not forcefully open or burn container after use. Do not spray toward flames.

Made in Israel

Manufactured By Perrigo

Yeruham 80500, Israel

Rev. 10/12

: 8A500 RC J2

INFORMATION FOR THE PATIENT

Nitroglycerin Lingual Spray

400 mcg per Spray, 60 or 200 Metered Sprays

Rx Only

Before using your Nitroglycerin Lingual Spray 400 mcg per spray, 60 or 200 metered sprays, read carefully the following directions for use.

Nitroglycerin Lingual Spray is a metered dose spray which delivers 48 mg of solution containing 400 mcg of nitroglycerin with each spray. Nitroglycerin is absorbed from the tongue and surrounding mucosa producing a prompt therapeutic effect. It is best to use Nitroglycerin Lingual Spray in a sitting position.

How to Use Nitroglycerin Lingual Spray

Before using this product for the first time, the pump must be sprayed 5 times into the air (this is known as priming). The pump should be primed every 6 weeks to remain ready for use. If the product has not been used for 6 weeks, a prime of 1 spray is necessary.

1. Remove the plastic cover.

2. DO NOT SHAKE.

3. Hold the container upright with forefinger on top of the grooved button.

4. Open the mouth and bring the container as close to it as possible.

5. Press the button firmly with the forefinger to release the spray onto or under the tongue. DO NOT INHALE THE SPRAY.

6. Release button and close mouth. Avoid swallowing immediately after administering the spray. The medication should not be expectorated or the mouth rinsed for 5 to 10 minutes following administration.

7. If you require a second administration to obtain relief, repeat steps 4, 5, and 6.

8. Replace the plastic cover.

NOTE: To familiarize yourself with the product and while priming the container, actuate the spray into the air (away from yourself and others). Get the feel of your finger resting on the grooved button so that you can use the spray in the dark. DO NOT SHAKE the container before use. You may wish to keep additional pumpspray containers handy in convenient locations.

Dosage

During an anginal attack, one or two sprays should be administered into your mouth, preferably onto or under the tongue. Do not inhale spray. The medication should not be expectorated or the mouth rinsed for 5 to 10 minutes following administration. A spray may be repeated approximately every 3-5 minutes as needed. No more than three metered sprays are recommended within a 15-minute period. If chest pain persists, prompt medical attention is recommended. Nitroglycerin Lingual Spray may be used 5 to 10 minutes prior to engaging in activities which might provoke an acute attack.

There are approximately 60 or 200 metered sprays of nitroglycerin per Nitroglycerin Lingual Spray bottle. However, the number of times the medication may be used is dependent on the number of sprays per use (1 or 2 sprays), and frequency of repriming. Each metered spray of Nitroglycerin Lingual Spray delivers 400 mcg of nitroglycerin after an initial priming of 5 sprays. The container will remain adequately primed for 6 weeks. If the medication is not used within 6 weeks, it can be adequately reprimed with 1 spray. Longer storage periods without use may require up to 5 repriming sprays.

Precaution

Your physician has determined that this product is likely to help your personal health.

USE THIS PRODUCT AS DIRECTED BY YOUR PHYSICIAN.

If you have any questions about alternatives, consult with your physician.

Do not share or give your medication to others, particularly those who may appear to be having chest discomfort similar to yours.

Nitroglycerin Lingual Spray should be used during an episode of chest pain or may be used 5 to 10 minutes prior to engaging in activities which might provoke an acute attack.

Nitroglycerin Lingual Spray is available in a clear glass bottle with an orange plastic coating on the exterior. This plastic coating is designed to contain the glass and medication should the bottle be shattered.

The transparent container can be used for continuous monitoring of the consumption. The end of the pump should be covered by the fluid level. Once fluid falls below the level of the center tube,sprays will not be adequate and the container should be replaced. As with all other sprays, there is aresidual volume of fluid at the bottom of the bottle which cannot be used. Nitroglycerin Lingual Spraycontains 20% alcohol. Do not forcefully open or burn container. Do not spray toward flames.

Keep in a safe place and out of the reach of children.

Store at 20-25°C (68-77°F) [see USP Controlled Room Temperature].

Call your doctor for medical advice about side effects.

You may report side effects to FDA at 1-800-FDA-1088.

Made in Israel

Manufactured By Perrigo

Yeruham 80500, Israel

Rev. 10/12

PACKAGE/LABEL PRINCIPAL DISPLAY PANEL- 4.9 g Carton

Rx Only

Nitroglycerin Lingual Spray

400 mcg per Spray

60 Metered Sprays

DO NOT SHAKE

HOLD CONTAINER UPRIGHT

PRIME BEFORE USE

4.9 g Net Contents

PACKAGE/LABEL PRINCIPAL DISPLAY PANEL- 4.9 g Label

Rx Only

Nitroglycerin Lingual Spray

400 mcg per Spray,

60 Metered Sprays

4.9 g Net Contents

NITROGLYCERIN LINGUAL 
nitroglycerin spray
Product Information
Product Type HUMAN PRESCRIPTION DRUG LABEL Item Code (Source) NDC:45802-210
Route of Administration ORAL DEA Schedule     
Active Ingredient/Active Moiety
Ingredient Name Basis of Strength Strength
NITROGLYCERIN (NITROGLYCERIN) NITROGLYCERIN 400 ug
Inactive Ingredients
Ingredient Name Strength
ALCOHOL  
MEDIUM-CHAIN TRIGLYCERIDES  
PEPPERMINT OIL  
Packaging
# Item Code Package Description
1 NDC:45802-210-01 1 BOTTLE in 1 CARTON
1 60 SPRAY in 1 BOTTLE
2 NDC:45802-210-02 1 BOTTLE in 1 CARTON
2 200 SPRAY in 1 BOTTLE
Marketing Information
Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date
ANDA ANDA091496 09/20/2013
Labeler - Perrigo New York Inc (078846912)
Revised: 09/2013
 
Perrigo New York Inc
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