Professional Information — Tolectin

Indications and Usage

Carefully consider the potential benefits and risks of TOLECTIN tablets, USP and other treatment options before deciding to use TOLECTIN tablets. Use the lowest effective dose for the shortest duration consistent with individual patient treatment goals (see WARNINGS).

TOLECTIN tablets are indicated for the relief of signs and symptoms of rheumatoid arthritis and osteoarthritis. TOLECTIN tablets are indicated in the treatment of acute flares and the long-term management of the chronic disease.

TOLECTIN tablets are also indicated for treatment of juvenile rheumatoid arthritis. The safety and effectiveness of TOLECTIN tablets have not been established in pediatric patients under 2 years of age (see PRECAUTIONS: Pediatric Useand DOSAGE AND ADMINISTRATION).

Dosage and Administration

Carefully consider the potential benefits and risks of TOLECTIN and other treatment options before deciding to use TOLECTIN. Use the lowest effective dose for the shortest duration consistent with individual patient treatment goals (see WARNINGS).

After observing the response to initial therapy with TOLECTIN, the dose and frequency should be adjusted to suit an individual patient’s needs.

For the relief of rheumatoid arthritis or osteoarthritis, the recommended starting dose for adults is 400 mg three times daily (1200 mg daily), preferably including a dose on arising and a dose at bedtime. To achieve optimal therapeutic effect the dose should be adjusted according to the patient’s response after 1 or 2 weeks. Control is usually achieved at doses of 600 mg to 1800 mg daily in divided doses (generally t.i.d.). Doses larger than 1800 mg/day have not been studied and are not recommended.

For the relief of juvenile rheumatoid arthritis, the recommended starting dose for pediatric patients (2 years and older) is 20 mg/kg/day in divided doses (t.i.d. or q.i.d.). When control has been achieved, the usual dose ranges from 15 to
30 mg/kg/day. Doses higher than 30 mg/kg/day have not been studied, and, therefore, are not recommended.

A therapeutic response to TOLECTIN can be expected in a few days to a week. Progressive improvement can be anticipated during succeeding weeks of therapy. If gastrointestinal symptoms occur, TOLECTIN can be
administered with antacids other than sodium bicarbonate. TOLECTIN bioavailability and pharmacokinetics are not significantly affected by acute or chronic administration of magnesium and aluminum hydroxides; however,
bioavailability is affected by food or milk (see PRECAUTIONS: Drug-Food Interaction).

Contraindications

TOLECTIN tablets are contraindicated in patients with known hypersensitivity to tolmetin sodium.

TOLECTIN should not be given to patients who have experienced asthma, urticaria or allergic-type reactions after taking aspirin or other NSAIDs. Severe, rarely fatal, anaphylactic-like reactions to NSAIDs have been reported in such
patients (see WARNINGS: Anaphylactoid Reactionsand PRECAUTIONS: General: Preexisting Asthma).

TOLECTIN is contraindicated in the setting of coronary artery bypass graft (CABG) surgery (see WARNINGS).

Adverse Reactions

The adverse reactions which have been observed in clinical trials encompass observations in about 4,370 patients treated with TOLECTIN, over 800 of whom have undergone at least one year of therapy. These adverse reactions, reported below by body system, are among those typical of nonsteroidal anti-inflammatory drugs and, as expected, gastrointestinal complaints were most frequent. In clinical trials with tolmetin, about 10% of patients dropped out because of adverse reactions, mostly gastrointestinal in nature.

Incidence Greater Than 1%:The following adverse reactions which occurred more frequently than 1 in 100 were reported in controlled clinical trials:

Gastrointestinal: nausea (11%), dyspepsia*, gastrointestinal distress*, abdominal pain*, diarrhea*, flatulence*, vomiting*, constipation, gastritis, and peptic ulcer. Forty percent of the ulcer patients had a prior history of peptic ulcer disease and/or were receiving concomitant anti-inflammatory drugs including corticosteroids, which are known to produce peptic ulceration.

Body as a Whole: headache*, asthenia*, chest pain

Cardiovascular: elevated blood pressure*, edema*

Central Nervous System: dizziness*, drowsiness, depression

Metabolic/Nutritional: weight gain*, weight loss*

Dermatologic: skin irritation

Special Senses: tinnitus, visual disturbance

Hematologic: Small and transient decreases in hemoglobin and hematocrit not associated with gastrointestinal bleeding have occurred. These are similar to changes reported with other nonsteroidal anti-inflammatory drugs.

Urogenital: elevated BUN, urinary tract infection

*Reactions occurring in 3% to 9% of patients treated with TOLECTIN. Reactions occurring in fewer than 3% of the patients are unmarked.

Incidence Less Than 1%:(Causal Relationship Probable) The following adverse reactions were reported less frequently than 1 in 100 in controlled clinical trials or were reported since marketing. The probability exists that there is a causal relationship between TOLECTIN and these adverse reactions.

Gastrointestinal: gastrointestinal bleeding with or without evidence of peptic ulcer, perforation, glossitis, stomatitis, hepatitis, liver function abnormalities

Body as a Whole: anaphylactoid reactions, fever, lymphadenopathy, serum sickness

Hematologic: hemolytic anemia, thrombocytopenia, granulocytopenia, agranulocytosis

Cardiovascular: congestive heart failure in patients with marginal cardiac function

Dermatologic: urticaria, purpura, erythema multiforme, toxic epidermal necrolysis

Urogenital: hematuria, proteinuria, dysuria, renal failure

Incidence Less Than 1%:(Causal Relationship Unknown) Other adverse reactions were reported less frequently than 1 in 100 in controlled clinical trials or were reported since marketing, but a causal relationship between tolmetin and the reaction could not be determined. These rarely reported reactions are being listed as alerting information for the physician since the possibility of a causal relationship cannot be excluded.

Body as a Whole: epistaxis

Special Senses: optic neuropathy, retinal and macular changes

To report SUSPECTED ADVERSE REACTIONS, contact Poly Pharmaceuticals, Inc. at 1-256-270-7552 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

Drug Interactions

ACE Inhibitors: Reports suggest that NSAIDs may diminish the antihypertensive effect of ACE Inhibitors. This interaction should be given consideration in patients taking NSAIDs concomitantly with ACE Inhibitors.

Aspirin: As with other NSAIDs, concomitant administration of TOLECTIN sodium and aspirin is not generally recommended because of the potential of increased adverse effects.

Diuretics: Clinical studies, as well as post-marketing observations have shown that NSAIDs can reduce the natriuretic effect of furosemide and thiazides in some patients. This response has been attributed to inhibition of renal prostaglandin synthesis. During concomitant therapy with NSAIDs, the patient should be observed closely for signs of renal failure, as well as to assure diuretic efficacy.

Lithium: NSAIDs have produced an elevation of plasma lithium levels and a reduction in renal lithium clearance. The mean minimum lithium concentration increased 15% and the renal clearance was decreased by approximately 20%. These effects have been attributed to inhibition of renal prostaglandin synthesis by the NSAID. Thus, when NSAIDs and lithium are administered concurrently, subjects should be observed carefully for signs of lithium toxicity.

Methotrexate: NSAIDs have been reported to competitively inhibit methotrexate accumulation in rabbit kidney slices. This may indicate that they could enhance the toxicity of methotrexate. Caution should be used when NSAIDs are
administered concomitantly with methotrexate.

Warfarin: The effects of warfarin and NSAIDs on GI bleeding are synergistic, such that users of both drugs together have a risk of serious GI bleeding higher than users of either drug alone.

The in vitrobinding of warfarin to human plasma proteins is unaffected by TOLECTIN, and TOLECTIN does not alter the prothrombin time of normal volunteers. However, increased prothrombin time and bleeding have been reported in patients on concomitant tolmetin and warfarin therapy. Therefore, caution should be exercised when administering tolmetin to patients on anticoagulants.

Hypoglycemic Agents: In adult diabetic patients under treatment with either sulfonylureas or insulin there is no change in the clinical effects of either TOLECTIN or the hypoglycemic agents.

Overdosage

In the event of overdosage, the stomach should be emptied by inducing vomiting or by gastric lavage followed by the administration of activated charcoal.

Description

Each tablet for oral administration contains 738 mg of tolmetin sodium, USP as the dihydrate in an amount equivalent to 600 mg of tolmetin. Each tablet contains 54 mg (2.35 mEq) of sodium and the following inactive ingredients: black iron oxide, crospovidone, hypromellose, magnesium stearate, microcrystalline cellulose, polydextrose, polyethylene glycol, povidone, pregelatinized starch (maize), sodium lauryl sulfate, titanium dioxide, triacetin and yellow iron oxide.

The pKa of tolmetin is 3.5 and tolmetin sodium is freely soluble in water, soluble in methanol and slightly soluble in alcohol. Tolmetin sodium is a nonselective nonsteroidal anti-inflammatory agent. The structural formula is:

(C ₁₅H ₁₄NNaO ₃• 2H ₂O)
M.W. 315.30


Sodium 1-methyl-5 p-toluoylpyrrole-2-acetate dihydrate.

Clinical Pharmacology

Studies in animals have shown TOLECTIN (tolmetin sodium) to possess anti-inflammatory, analgesic, and antipyretic activity. In the rat, TOLECTIN prevents the development of experimentally induced polyarthritis and also decreases established inflammation.

The mode of action of TOLECTIN is not known. However, studies in laboratory animals and man have demonstrated that the anti-inflammatory action of TOLECTIN is not due to pituitary- adrenal stimulation. TOLECTIN inhibits prostaglandin synthetase in vitro and lowers the plasma level of prostaglandin E in man. This reduction in prostaglandin synthesis may be responsible for the anti-inflammatory action. TOLECTIN does not appear to alter the course of the underlying disease in man.

In patients with rheumatoid arthritis and in normal volunteers, TOLECTIN is rapidly and almost completely absorbed with peak plasma levels being reached within 30 to 60 minutes after an oral therapeutic dose. In controlled studies, the time to reach peak tolmetin plasma concentration is approximately 20 minutes longer following administration of a 600 mg tablet, compared to an equivalent dose given as 200 mg tablets. The clinical meaningfulness of this finding, if any, is unknown. Tolmetin displays a biphasic elimination from the plasma consisting of a rapid phase with a half-life of 1 to 2 hours followed by a slower phase with a half-life of about 5 hours. Peak plasma levels of approximately 40 mcg/mL are obtained with a 400 mg oral dose. Essentially all of the administered dose isrecovered in the urine in 24 hours either as an inactive oxidative metabolite or as conjugates of tolmetin. An 18-day multiple- dose study demonstrated no accumulation of tolmetin when compared with a single dose.

In two fecal blood loss studies of 4 to 6 days duration involving 15 subjects each, TOLECTIN did not induce an increase in blood loss over that observed during a 4-day drug free control period. In the same studies, aspirin produced a greater blood loss than occurred during the drug free control period, and a greater blood loss than occurred during the TOLECTIN treatment period. In one of the two studies, indomethacin produced a greater fecal blood loss than occurred during the drug free control period; in the second study, indomethacin did not induce a significant increase in blood loss.

TOLECTIN is effective in treating both the acute flares and in the long-term management of the symptoms of rheumatoid arthritis, osteoarthritis and juvenile rheumatoid arthritis.

In patients with either rheumatoid arthritis or osteoarthritis, TOLECTIN is as effective as aspirin and indomethacin in controlling disease activity, but the frequency of the milder gastrointestinal adverse effects and tinnitus was less than in aspirin-treated patients, and the incidence of central nervous system adverse effects was less than in indomethacin-treated patients.

In patients with juvenile rheumatoid arthritis, TOLECTIN is as effective as aspirin in controlling disease activity, with a similar incidence of adverse reactions. Mean SGOT values, initially elevated in patients on previous aspirin therapy, remained elevated in the aspirin group and decreased in the TOLECTIN group.

TOLECTIN has produced additional therapeutic benefit when added to a regimen of gold salts and, to a lesser extent, with corticosteroids. TOLECTIN should not be used in conjunction with salicylates since greater benefit from the combination is not likely, but the potential for adverse reactions is increased.

How Supplied / Storage and Handling

TOLECTIN Tablets, USP are available containing 738 mg of tolmetin sodium, USP as the dihydrate in an amount equivalent to 600 mg of tolmetin. The 600 mg tablets are a beige, film-coated, oval-shaped, biconvex, beveled-edge tablet debossed with “R 25” on one side of the tablet and plain on the other side. They are available as follows:

Bottles of 30 Tablets NDC 50991-988-30


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

Protect from light.

Dispense in a tight, light-resistant container as defined in the USP using a child-resistant closure.

Manufactured for:
Poly Pharmaceuticals, Inc.
Owens Cross Roads, AL 35763

Issued: 02/2024

PHARMACIST:Dispense a Medication Guide with each prescription.

Patient Counseling Information

Patients should be informed of the following information before initiating therapy with an NSAID and periodically during the course of ongoing therapy. Patients should also be encouraged to read the NSAID Medication Guide that accompanies each prescription dispensed.

1. Cardiovascular Thrombotic Events: Advise patients to be alert for the symptoms of cardiovascular thrombotic events, including chest pain, shortness of breath, weakness, or slurring of speech, and to report any of these symptoms to their healthcare provider immediately (see WARNINGS).

2. TOLECTIN, like other NSAIDs, can cause GI discomfort and, rarely, serious GI side effects, such as ulcers and bleeding, which may result in hospitalization and even death. Although serious GI tract ulcerations and bleeding can occur without warning symptoms, patients should be alert for the signs and symptoms of ulcerations and bleeding, and should ask for medical advice when observing any indicative signs or symptoms including epigastric pain, dyspepsia, melena, and hematemesis. Patients should be apprised of the importance of this follow-up (see WARNINGS: Gastrointestinal (GI) Effects: Risk of Ulceration, Bleeding, and Perforation).

3. Serious Skin Reactions, including DRESS: Advise patients to stop taking TOLECTIN sodium tablets immediately if they develop any type of rash or fever and to contact their healthcare provider as soon as possible (see WARNINGS).

4. Heart Failure And Edema: Advise patients to be alert for the symptoms of congestive heart failure including shortness of breath, unexplained weight gain, or edema and to contact their healthcare provider if such symptoms occur (see WARNINGS).

5. Patients should be informed of the warning signs and symptoms of hepatotoxicity (e.g., nausea, fatigue, lethargy, pruritus, jaundice, right upper quadrant tenderness, and “flu-like” symptoms). If these occur, patients should be instructed to stop therapy and seek immediate medical therapy.

6. Patients should be informed of the signs of an anaphylactoid reaction (e.g., difficulty breathing, swelling of the face or throat). If these occur, patients should be instructed to seek immediate emergency help (see WARNINGS).

7. Fetal Toxicity: Inform pregnant women to avoid use of TOLECTIN sodium tablets and other NSAIDs starting at 30 weeks gestation because of the risk of the premature closing of the fetal ductus arteriosus. If treatment with tolmetin sodium tablets is needed for a pregnant woman between about 20 to 30 weeks gestation, advise her that she may need to be monitored for oligohydramnios, if treatment continues for longer than 48 hours (see WARNINGS: Fetal Toxicity, PRECAUTIONS: Pregnancy).