NITRO-TIME

Nitroglycerin is 1,2,3-propanetriol trinitrate, an organic nitrate whose structural formula is: Molecular Formula: C3H5N3O9 Molecular Weight: 227.09 The organic nitrates are vasodilators, active on both arteries and veins. Each Extended-Release Capsule, for oral administration contains 2.5 mg, 6.5 mg or 9 mg of Nitroglycerin. The inactive ingredients in each capsule are corn starch, ethylcellulose, gelatin, lactose monohydrate, propylene glycol, shellac, sugar, talc, and wax. Additionally, the 2.5 mg capsule contains D&C Red #28, D&C Yellow #10, D&C Yellow #10 Aluminum Lake, FD&C Blue #1, FD&C Blue #1 Aluminum Lake, FD&C Blue #2 Aluminum Lake, FD&C Red #40, FD&C Red #40 Aluminum Lake, Iron Oxide Black; the 6.5 mg capsule contains D&C Red #33, D&C Yellow #10, FD&C Blue #1, FD&C Yellow #6, Simethicone, Titanium Dioxide; the 9 mg capsule contains D&C Yellow #10, D&C Yellow #10 Aluminum Lake, FD&C Blue #1 Aluminum Lake, FD&C Blue #2 Aluminum Lake, FD&C Green #3, FD&C Red #40 Aluminum Lake, FD&C Yellow #6, Iron Oxide Black, Titanium Dioxide. nitroglycerin-description

: Nitroglycerin Extended-Release Capsules are indicated for the prevention of angina pectoris due to coronary artery disease. The onset of action of oral nitroglycerin is not sufficiently rapid for this product to be useful in aborting an acute anginal episode.

: As noted above (CLINICAL PHARMACOLOGY) , careful studies with other formulations of nitroglycerin have shown that maintenance of continuous 24-hour plasma levels of nitroglycerin result in tolerance (i.e. loss of clinical response). Every dosing regimen for Nitroglycerin Extended-Release Capsules should provide a daily nitrate-free interval avoid the development of this tolerance. The minimum necessary length of such an interval has not been defined, but studies with other nitroglycerin formulations have shown that 10-12 hours is sufficient. Large controlled studies with other formulations of nitroglycerin show that no dosing regimen with Nitroglycerin Extended-Release should be expected to provide more than about 12 hours of continuous anti-anginal efficacy per day. The pharmacokinetics of Nitroglycerin Capsules and the clinical effects of multiple-dose regimens, have not been well studied. In clinical trials, the initial regimen of nitroglycerin has been 2.5 to 6.5 mg three to four times a day, with subsequent upward dose adjustment guided by symptoms and side effects. In one trial, 5 of the 18 subjects were titrated up to a dose of 26 mg four times a day.

: Allergic reactions to organic nitrates are extremely rare, but they do occur. Nitroglycerin is contraindicated in patients who are allergic to it.

Adverse reactions to nitroglycerin are generally dose-related, and almost all of these reactions are the result of nitroglycerin's activity as a vasodilator. Headache, which may be severe, is the most commonly reported side effect. Headache may be recurrent with each daily dose, especially at higher doses. Transient episodes of lightheadedness, occasionally related to blood pressure changes, may also occur. Hypotension occurs infrequently, but in some patients may be severe enough to warrant discontinuation of therapy. Syncope, crescendo angina, and rebound hypertension have been reported but are uncommon. Allergic reactions to nitroglycerin are also uncommon, and the great majority of those reported have been cases of contact dermatitis or fixed drug eruptions in patients receiving nitroglycerin in ointments or patches. There have been a few reports of genuine anaphylactoid reactions, and these reactions can probably occur in patients receiving nitroglycerin by any route. Extremely rarely, ordinary doses of organic nitrates have caused methemoglobinemia in normal seeming patients; for further discussion of its diagnosis and treatment see OVERDOSAGE. Data are not available to allow estimation of the frequency of adverse reactions during treatment with Nitroglycerin Extended-Release Capsules.

The vasodilating effects of nitroglycerin may be additive with those of other vasodilators. Alcohol, in particular, has been found to exhibit additive effects of this variety. Marked symptomatic orthostatic hypotension has been reported when calcium channel blockers and organic nitrates were used in combination. Dose adjustments of either class of agents may be necessary.

STORAGE: Store at controlled room temperature 25 °C (77 °F), excursions permitted between 15°-30 °C (59°-86 °F). Protect from moisture. Dispense in a tight container, as defined in the USP. Manufactured by: Time-Cap Labs, Inc. Farmingdale, NY 11735 Revised November 2025