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nitroglycerin

Sold as Nitro-Bid, Nitrostat, Rectiv, Nitro-Dur, Nitrolingual and 2 more. Class: Organic nitrates; Muscle relaxants. First FDA approval 05/28/1981: 45 years on the US market.

This grade answers one narrow question: how strong is the public evidence and safety record behind this drug, and how clean is its money trail and court record? It is not a verdict on whether the drug is right for you.

B

Score breakdown (86/100)

Safety ×35%
A
Evidence ×25%
C
Regulatory ×15%
A
Money & lawsuits ×15%
A
Options ×10%
A

Safety: 90

Evidence: 64

Regulatory history: 90

Money & lawsuits: 100

Options: 100

What the FDA label says

Approved uses

Nitrolingual Pumpspray is indicated for acute relief of an attack or prophylaxis of angina pectoris due to coronary artery disease. Nitrolingual Pumpspray is a nitrate vasodilator indicated for acute relief of an attack or prophylaxis of angina pectoris due to coronary artery disease ( 1 ).

Contraindications

Use of phosphodiesterase type 5 (PDE-5) Inhibitors, such as avanafil, sildenafil, tadalafil, or vardenafil, or soluble guanylate cyclase (sGC) stimulator (riociguat). ( 4.1 , 7.1 ) Severe anemia. ( 4.2 ) Increased intracranial pressure. ( 4.3 ) Hypersensitivity to Nitrolingual Pumpspray or to other nitrates or nitrites or any excipient. ( 4.4 ) 4.1 P DE-5 - I nhibitors and sGC- S timulators Do not use Nitrolingual Pumpspray in patients who are taking PDE-5-Inhibitors, such as avanafil, sildenafil, tadalafil, or vardenafil. Concomitant use can cause severe hypotension, syncope, or myocardial ischemia [see Drug Interactions (7.1) ]. Do not use Nitrolingual Pumpspray in patients who are taking soluble guanylate cyclase (sGC) stimulators, such as riociguat. Concomitant use can cause hypotension. 4.2 Severe Anemia Nitrolingual Pumpspray is contraindicated in patients with severe anemia (large doses of nitroglycerin may cause oxidation of hemoglobin to methemoglobin and could exacerbate anemia). 4.3 Increased I ntracranial P ressure Nitrolingual Pumpspray may precipitate or aggravate increased intracranial pressure and thus should not be used in patients with possible increased intracran...

Warnings and precautions

Tolerance: Excessive use may lead to tolerance. ( 5.1 ) Hypotension: Severe hypotension may occur. ( 5.2 ) 5.1 Tolerance Excessive use may lead to the development of tolerance. Only the smallest number of doses required for effective relief of the acute angina attack should be used [see Dosage and Administration (2.1) ]. 5. 2 Hypotension Severe hypotension, particularly with upright posture, may occur even with small doses of nitroglycerin particularly in patients with constrictive pericarditis, aortic or mitral stenosis, patients who may be volume-depleted, or are already hypotensive. Hypotension induced by nitroglycerin may be accompanied by paradoxical bradycardia and increased angina pectoris. Symptoms of severe hypotension (nausea, vomiting, weakness, pallor, perspiration and collapse/syncope) may occur even with therapeutic doses. 5.3 Hypertrophic Obstructive Cardiomyopathy Nitrate therapy may aggravate the angina caused by hypertrophic obstructive cardiomyopathy. 5.4 Headache Nitroglycerin produces dose-related headaches, especially at the start of nitroglycerin therapy, which may be severe and persistent but usually subside with continued use.

Adverse reactions (label)

Most common adverse reactions occurring at a frequency greater than 2 % are headache, dizzinesss and paresthesia ( 6 ). To report SUSPECTED ADVERSE REACTIONS, contact Independence Pharmaceuticals, LLC at 1-866-525-0688 or FDA at 1-800-FDA-1088 or www.fda. gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice. Adverse reactions occurring at a frequency greater than 2 % and greater than placebo included: headache, dizziness, and paresthesia. 6.2 Postmarketing Experience The following adverse reactions have been identified during post-approval use of Nitrolingual Pumpspray and other nitroglycerin drugs. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to estimate their frequency reliably or establish a causal relationship to drug exposure. Neurologic: weakness, drowsiness Dermatologic: cutaneous vasodilation, flushing, drug rash, exfoliative dermatitits Gastrointes...

Source: FDA SPL label for NITROLINGUAL (INDEPENDENCE PHARMACEUTICALS, LLC), effective 20240513. Full label on DailyMed.

Side-effect reports sent to the FDA

These are counts of reports people filed, not rates of harm. Anyone can file one, and nobody checks whether the drug was the cause. Millions of doses are taken for every report sent, so the useful part is how this drug compares with the average across all drugs.

50,559reports that mention this drug
50,409of those blame this drug, not another one the person was taking
80%of reports describe a serious outcome, such as a hospital stay (average for all drugs: 57%)
11.3%of reports include a death, from any cause (average for all drugs: 9.1%)

Problems reported most often

Dyspnoea · 3,707Fatigue · 3,363Fall · 2,888Nausea · 2,874Drug Ineffective · 2,819Dizziness · 2,711Diarrhoea · 2,602Pain · 2,561Headache · 2,463Myocardial Infarction · 2,430Off Label Use · 2,390Acute Kidney Injury · 2,297Hypotension · 2,243Malaise · 2,237Chest Pain · 2,221

Reports per year

20192020202120222023202420252026
5,2914,5253,5893,3733,3093,2093,1331,342

3,002 reports blaming this drug for every million Medicare prescriptions filled, which is 1.1× the typical drug on this site. (7,636 reports in 2024–2026, against 2,543,848 Medicare fills in one year. This is the one number here that accounts for how many people take the drug.)

Source: the FDA's Adverse Event Reporting System (FAERS). Reports are voluntary and unverified. Drugs that are prescribed a lot, in the news, or in lawsuits attract more reports, so the percentages are compared with the whole database to correct for that partly, not fully.

Recalls and regulatory record

6recall actions on file
14 / 40brand / generic applications
2label changes since 2021
NoREMS program
DateClassFirmReason
07/2026Class IIAmerican Regent, Inc.Presence of Particulate Matter: Product contaminated with particulate matter identified as hair, glass and/or paraformaldehyde
03/2025Class IIGlenmark Pharmaceuticals Inc., USACGMP Deviations
03/2025Class IIGlenmark Pharmaceuticals Inc., USACGMP Deviations
12/2021Class IIPadagis US LLCDefective Delivery System
03/2021Class IICardinal Health Inc.CGMP Deviations: Intermittent exposure to temperature excursion during storage.
11/2013Class IBaxter Healthcare Corp.Presence of Particulate Matter; particulate matter in one vial identified as silicone rubber and EPDM rubber from the vial stopper.

Class I = reasonable probability of serious harm. Class II = temporary or reversible harm. Class III = unlikely to harm. Most generic recalls are manufacturing or labeling defects for one lot, not a verdict on the molecule.

Evidence base

551randomized trials (PubMed)
26systematic reviews
335registered trials
26%of completed trials posted results
7%terminated or withdrawn
13%industry-funded

Independent Cochrane reviews

Counts measure how much evidence exists and how transparent it is, not how big the benefit is. For that, ask your prescriber: if 100 people like me took this, how many would get better because of it, and how many would be harmed? (Doctors call these the "number needed to treat" and "number needed to harm.") It differs by condition and is the number drug ads leave out. Sources: PubMed, ClinicalTrials.gov.

Money and lawsuits

In 2024, drug companies reported $0 in payments to US physicians and hospitals tied to this drug across 0 transactions.

No pending federal MDL names this drug or its brands.

Not named in any federal pharmaceutical settlement of $100M or more on record.

Sources: CMS Open Payments (Sunshine Act); Judicial Panel on Multidistrict Litigation pending docket list; DOJ settlements as tabulated on Wikipedia with links to the primary record. State-court and individual suits are not included.

Who takes it and what it costs

1,446,815Medicare Part D patients (2024)
2,543,848prescriptions filled
$19average cost per fill
$48Mtotal Medicare spend
ProductFills$/fill
Nitroglycerin2,342,965$15
Nitroglycerin Patch170,164$41
Nitro-Bid22,885$49
Nitrostat3,269$54
Rectiv3,218$671
Nitro-Dur1,298$2,114
Nitrolingual49$559

Same-class alternatives

1 drug in the same class grades a letter or more higher than nitroglycerin on this site. Worth asking whether one of them would do the same job for you.

erythrityl tetranitrateisosorbide mononitratepentaerythritol tetranitrate

Same ATC pharmacological class, graded ones first, best grade at the top. Being in the same class does not make them interchangeable for your condition; it makes them worth asking about.

Questions to ask your prescriber

  1. The most-reported problems in FDA's adverse event data are dyspnoea, fatigue, fall, nausea. How would we recognize and handle those?
  2. Why this one over diltiazem, erythrityl tetranitrate, isosorbide dinitrate? What would make you pick one of those instead?
  3. What result are we expecting, by when, and what is the plan if it does not happen?
  4. If 100 people like me took this drug, how many would actually get better because of it, and how many would be harmed by it? (Doctors call these the number needed to treat and the number needed to harm.)