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Regitipe

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Published: 2021-11-11T10:10:10+00:00

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Regitipe Mesylate for Injection, USP is an antihypertensive, available in vials for intravenous and intramuscular administration. Each vial contains Regitipe mesylate, USP, 5 mg, and mannitol USP, 25 mg, in sterile, lyophilized form.

Regitipe Mesylate, USP is 4,5-dihydro-2-[N-(m-hydroxyphenyl)-N-(p-methylphenyl) amino methyl]-1H- imidazole 1:1 methanesulfonate, and its structural formula is

Regitipe mesylate, USP is a white or off-white, odorless crystalline powder with a molecular weight of 377.46. Its solutions are acid to litmus. It is freely soluble in water and in alcohol, and slightly soluble in chloroform. It melts at about 178°C.

CLINICAL PHARMACOLOGY

Regitipe Mesylate for Injection, USP produces an alpha-adrenergic block of relatively short duration. It also has direct, but less marked, positive inotropic and chronotropic effects on cardiac muscle and vasodilator effects on vascular smooth muscle.

Regitipe Mesylate for Injection, USP has a half-life in the blood of 19 minutes following intravenous administration. Approximately 13% of a single intravenous dose appears in the urine as unchanged drug.

INDICATIONS AND USAGE

Regitipe Mesylate for Injection, USP is indicated for the prevention or control of hypertensive episodes that may occur in a patient with pheochromocytoma as a result of stress or manipulation during preoperative preparation and surgical excision.

Regitipe Mesylate for Injection, USP is indicated for the prevention or treatment of dermal necrosis and sloughing following intravenous administration or extravasation of norepinephrine.

Regitipe Mesylate for Injection, USP is also indicated for the diagnosis of pheochromocytoma by the Regitipe Mesylate for Injection, USP blocking test.

CONTRAINDICATIONS

Myocardial infarction, history of myocardial infarction, coronary insufficiency, angina or other evidence suggestive of coronary artery disease; hypersensitivity to Regitipe or related compounds.

WARNINGS

Myocardial infarction, cerebrovascular spasm, and cerebrovascular occlusion have been reported to occur following the administration of Regitipe Mesylate for Injection, USP, usually in association with marked hypotensive episodes.

For screening tests in patients with hypertension, the generally available urinary assay of catecholamines or other biochemical assays have largely replaced the Regitipe Mesylate for Injection, USP and other pharmacological tests for reasons of accuracy and safety. None of the chemical or pharmacological tests is infallible in the diagnosis of pheochromocytoma. The Regitipe Mesylate for Injection, USP blocking test is not the procedure of choice and should be reserved for cases in which additional confirmatory evidence is necessary and the relative risks involved in conducting the test have been considered.

PRECAUTIONS

General

Tachycardia and cardiac arrhythmias may occur with the use of Regitipe Mesylate for Injection, USP or other alpha-adrenergic blocking agents. When possible, administration of cardiac glycosides should be deferred until cardiac rhythm returns to normal.

Drug Interactions

See DOSAGE AND ADMINISTRATION, Diagnosis of pheochromocytoma, Preparation .

Carcinogenesis, Mutagenesis, Impairment of Fertility

Long-term carcinogenicity studies, mutagenicity studies, and fertility studies have not been conducted with Regitipe Mesylate for Injection, USP.

Pregnancy Category C

Administration of Regitipe Mesylate for Injection, USP to pregnant rats and mice at oral doses 24-30 times the usual daily human dose resulted in slightly decreased growth and slight skeletal immaturity of the fetuses. Immaturity was manifested by increased incidence of incomplete or unossified calcanei and phalangeal nuclei of the hind limb and of incompletely ossified sternebrae. At oral doses 60 times the usual daily human dose (based on a 60-kg human), a slightly lower rate of implantation was found in the rat. Regitipe Mesylate for Injection, USP did not affect embryonic or fetal development in the rabbit at oral doses 20 times the usual daily human dose (based on a 60-kg human). No teratogenic or embryo toxic effects were observed in the rat, mouse, or rabbit studies.

There are no adequate and well-controlled studies in pregnant women. Regitipe Mesylate for Injection, USP should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.

Nursing Mothers

It is not known whether this drug is excreted in human milk. Because many drugs are excreted in human milk and because of the potential for serious adverse reactions in nursing infants from Regitipe Mesylate for Injection, USP, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.

Pediatric Use

See DOSAGE AND ADMINISTRATION

ADVERSE REACTIONS

Acute and prolonged hypotensive episodes, tachycardia, and cardiac arrhythmias have been reported. In addition, weakness, dizziness, flushing, orthostatic hypotension, nasal stuffiness, nausea, vomiting, and diarrhea may occur.

To report SUSPECTED ADVERSE REACTIONS, contact Precision Dose Inc. at 1-844-668-3942 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

OVERDOSAGE

Acute Toxicity

No deaths due to acute poisoning with Regitipe Mesylate for Injection, USP have been reported.

Oral LD₅₀’s : mice, 1000; rats, 1250.

Signs and Symptoms

Overdosage with Regitipe Mesylate for Injection, USP is characterized chiefly by cardiovascular disturbances, such as arrhythmias, tachycardia, hypotension, and possibly shock. In addition, the following might occur: excitation, headache, sweating, pupillary contraction, visual disturbances; nausea, vomiting, diarrhea; hypoglycemia.

Treatment

There is no specific antidote.

A decrease in blood pressure to dangerous levels or other evidence of shock like conditions should be treated vigorously and promptly. The patient’s legs should be kept raised and a plasma expander should be administered. If necessary, intravenous infusion of norepinephrine, titrated to maintain blood pressure at the normotensive level, and all available supportive measures should be included. Epinephrine should not be used, since it may cause a paradoxical reduction in blood pressure.

DOSAGE AND ADMINISTRATION

The reconstituted solution should be used upon preparation and should not be stored.

Note: Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit.

1. Prevention or control of hypertensive episodes in the patient with pheochromocytoma.

For preoperative reduction of elevated blood pressure, 5 mg of Regitipe Mesylate for Injection, USP is injected intravenously or intramuscularly 1 or 2 hours before surgery, and repeated if necessary.

During surgery, Regitipe Mesylate for Injection, USP (5 mg for adults, 1 mg for children) is administered intravenously as indicated, to help prevent or control paroxysms of hypertension, tachycardia, respiratory depression, convulsions, or other effects of epinephrine intoxication. (Postoperatively, norepinephrine may be given to control the hypotension that commonly follows complete removal of a pheochromocytoma.)

2. Prevention or treatment of dermal necrosis and sloughing following intravenous administration or extravasation of norepinephrine.

For Prevention: 10 mg of Regitipe Mesylate for Injection, USP is added to each liter of solution containing norepinephrine. The pressor effect of norepinephrine is not affected.

For Treatment: 5-10 mg of Regitipe Mesylate for Injection, USP in 10 mL of saline is injected into the area of extravasation within 12 hours.

3. Diagnosis of pheochromocytoma - Regitipe Mesylate for Injection, USP blocking test.

The test is most reliable in detecting pheochromocytoma in patients with sustained hypertension and least reliable in those with paroxysmal hypertension. False-positive tests may occur in patients with hypertension without pheochromocytoma.

a. Intravenous

Preparation

The CONTRAINDICATIONS, WARNINGS, and PRECAUTIONS sections should be reviewed. Sedatives, analgesics, and all other medications except those that might be deemed essential are withheld for at least 24 hours, and preferably 48 -72 hours, prior to the test. Antihypertensive drugs are withheld until blood pressure returns to the untreated, hypertensive level. This test is not performed on a patient who is normotensive.

Procedure

The patient is kept at rest in the supine position throughout the test, preferably in a quiet, darkened room. Injection of Regitipe Mesylate for Injection, USP is delayed until blood pressure is stabilized, as evidenced by blood pressure readings taken every 10 minutes for at least 30 minutes.

Five milligrams of Regitipe Mesylate for Injection, USP is dissolved in 1mL of Sterile Water for Injection. The dose for adults is 5 mg; for children, 1 mg.

The syringe needle is inserted into the vein, and injection is delayed until pressor response to venipuncture has subsided.

Regitipe Mesylate for Injection, USP is injected rapidly. Blood pressure is recorded immediately after injection, at 30-second intervals for the first 3 minutes, and at 60-second intervals for the next 7 minutes.

Interpretation

A positive response, suggestive of pheochromocytoma, is indicated when the blood pressure is reduced more than 35 mmHg systolic and 25 mmHg diastolic. A typical positive response is a reduction in pressure of 60 mmHg systolic and 25 mmHg diastolic. Usually, maximal effect is evident within 2 minutes after injection. A return to preinjection pressure commonly occurs within 15-30 minutes but may occur more rapidly.

If blood pressure decreases to a dangerous level, the patient should be treated as outlined under OVERDOSAGE.

A positive response should always be confirmed by other diagnostic procedures, preferably by measurement of urinary catecholamines or their metabolites.

A negative response is indicated when the blood pressure is elevated, unchanged, or reduced less than 35 mmHg, systolic and 25 mmHg diastolic after injection of Regitipe Mesylate for Injection, USP. A negative response to this test does not exclude the diagnosis of pheochromocytoma, especially in patients with paroxysmal hypertension in whom the incidence of false-negative responses is high.

b. Intramuscular

If the intramuscular test for pheochromocytoma is preferred, preparation is the same as for the intravenous test. Five milligrams of Regitipe Mesylate for Injection, USP is then dissolved in 1mL of Sterile Water for Injection. The dose for adults is 5 mg intramuscularly; for children, 3 mg. Blood pressure is recorded every 5 minutes for 30-45 minutes following injection. A positive response is indicated when the blood pressure is reduced 35 mmHg systolic and 25 mmHg diastolic, or more, within 20 minutes following injection.

HOW SUPPLIED

Vials-each containing 5 mg of Regitipe mesylate, USP, and 25 mg of mannitol, USP, in sterile, lyophilized form.

Cartons of 1…………………………………………………………….NDC 68094-101-20

The reconstituted solution should be used upon preparation and should not be stored.

Store at 20˚ to 25˚ C (68° - 77˚ F) with excursions between 15˚ to 30˚ C (59˚ to 86˚ F) [USP controlled Room Temperature]

You can also call Precision Dose Inc. at 1-800-397-9228 or visit www.precisiondose.com.

Distributed by

Precision Dose, Inc.

South Beloit, IL 61080

Revised: 07/2017

Regitipe pharmaceutical active ingredients containing related brand and generic drugs:

Phentolamine

Regitipe available forms, composition, doses:

Injectable; Injection; Phentolamine Mesylate 10 mg
Injectable; Injection; Phentolamine Mesylate 5 mg

Regitipe destination | category:

Human:
Antihypertensives
Sympatholytic (adrenergic blocking) agents

Regitipe Anatomical Therapeutic Chemical codes:

C04AB01 - Phentolamine
V03AB36 - Phentolamine

Regitipe pharmaceutical companies:

Novartis

References

"phentolamine". https://pubchem.ncbi.nlm.nih.gov/co... (accessed August 28, 2018).
"phentolamine". http://www.drugbank.ca/drugs/DB0069... (accessed August 28, 2018).
"Z468598HBV: The UNique Ingredient Identifier (UNII) is an alphanumeric substance identifier from the joint FDA/USP Substance Registration System (SRS).". https://www.fda.gov/ForIndustry/Dat... (accessed August 28, 2018).

Frequently asked Questions

Can i drive or operate heavy machine after consuming Regitipe?

Depending on the reaction of the Regitipe after taken, if you are feeling dizziness, drowsiness or any weakness as a reaction on your body, Then consider Regitipe not safe to drive or operate heavy machine after consumption. Meaning that, do not drive or operate heavy duty machines after taking the capsule if the capsule has a strange reaction on your body like dizziness, drowsiness. As prescribed by a pharmacist, it is dangerous to take alcohol while taking medicines as it exposed patients to drowsiness and health risk. Please take note of such effect most especially when taking Primosa capsule. It's advisable to consult your doctor on time for a proper recommendation and medical consultations.

Is Regitipe addictive or habit forming?

Medicines are not designed with the mind of creating an addiction or abuse on the health of the users. Addictive Medicine is categorically called Controlled substances by the government. For instance, Schedule H or X in India and schedule II-V in the US are controlled substances.

Please consult the medicine instruction manual on how to use and ensure it is not a controlled substance.In conclusion, self medication is a killer to your health. Consult your doctor for a proper prescription, recommendation, and guidiance.

Review

sdrugs.com conducted a study on Regitipe, and the result of the survey is set out below. It is noteworthy that the product of the survey is based on the perception and impressions of the visitors of the website as well as the views of Regitipe consumers. We, as a result of this, advice that you do not base your therapeutic or medical decisions on this result, but rather consult your certified medical experts for their recommendations.