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Vega Extra Cobra (sildenafil citrate)

Vega Extra Cobra (sildenafil citrate)

$ 1.02 per pill

Quick Overview

Selective Sildenafil Vega Extra 130 Mg against PDE5 in vitro, its activity against PDE5 superior activity against other known PDE isoenzymes: PDE-6 — 10 times; PDE-1 more than 80 times; PDE-2, PDE-4, PDE-7 PDE–11 more than 700 times. Sildenafil Vega Extra 130 Mg is 4000 times more selective for PDE-5 than PDE-3, which is crucial because PDE-3 is one of the key enzymes in the regulation of myocardial contractility.

Vega Extra Cobra® (Signature)

Vega Extra Cobra (Sildenafil citrate) 120 mg

Vega Extra Cobra
Sildenafil citrate
120 mg × 180 pills
$ 193.90 $ 183.95
$ 1.02 per pill
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Vega Extra Cobra
Sildenafil citrate
120 mg × 120 pills
$ 160.90 $ 151.95
$ 1.27 per pill
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Vega Extra Cobra
Sildenafil citrate
120 mg × 90 pills
$ 145.90 $ 137.95
$ 1.53 per pill
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Vega Extra Cobra
Sildenafil citrate
120 mg × 60 pills
$ 115.90 $ 109.95
$ 1.83 per pill
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Vega Extra Cobra
Sildenafil citrate
120 mg × 30 pills
$ 67.90 $ 63.95
$ 2.13 per pill
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Vega Extra Cobra
Sildenafil citrate
120 mg × 20 pills
$ 49.90 $ 46.95
$ 2.35 per pill
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Vega Extra Cobra
Sildenafil citrate
120 mg × 10 pills
$ 27.90 $ 25.95
$ 2.59 per pill
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Information

Contraindications

hypersensitivity to Sildenafil Tablets Vegah Extra Cobra or any other component of the drug;

application in patients receiving constantly or intermittently nitric oxide donators, organic nitrates or nitrites in any form, as Vega 120 Mg enhances the hypotensive effect of nitrates (see "Interaction»);

the combined use of inhibitors of PDE5, including Vega Coin, called guanylate cyclase stimulants such as riociguat, because it can lead to symptomatic hypotension;

concomitant use with other agents for the treatment of erectile dysfunction (safety and efficacy of Vega 120 Mg when used together has not been studied (see. "Special instructions»);

lactose intolerance, lactase deficiency, glucose-papacosma malabsorption;

severe liver failure (class C classification for child-Pugh);

simultaneous administration of ritonavir;

severe cardiovascular diseases (severe heart failure, unstable angina, stroke or myocardial infarction during the last 6 months, life-threatening arrhythmias, hypertension (BP >170/100 mm Hg). art.) or hypotension (blood PRESSURE <90/50 mm Hg.art.) (see "Special instructions»);

patients with episodes of development partizanai anterior ischemic optic neuropathies (NESN) with loss of vision in one eye;

hereditary retinitis pigmentosa (see special instructions»);

according to the registered indication is not intended for use in women;

according to the registered indication is not intended for use in children under 18 years.

With caution: anatomic deformity of the penis (angulation, cavernous fibrosis or Peyronie's disease) (see "Special instructions"); diseases of, predisposing to the development of priapism (sickle-cell anemia, multiple myeloma, leukemia, thrombocythemia) (see "Special instructions"); diseases accompanied by haemorrhage; ulcer disease of stomach and duodenum in the acute phase; liver dysfunction; severe renal insufficiency (Cl creatinine <30 ml/min); patients with an episode of partizanai development of the anterior ischemic optic neuropathies in history (see "Special instructions); simultaneous reception of blockers α-adrenergic receptors.

Use during pregnancy and breast-feeding

According to the registered indication, the drug is not intended for use in women.

Clinical data

Cardiac studies. The use of Vega 120 Mg in doses up to 100 mg did not lead to clinically significant ECG changes in healthy volunteers. The maximum decrease in systolic pressure in the supine position after taking Vega 120 Mg at a dose of 100 mg was 8.3 mm Hg.art., and diastolic pressure — 5.3 mm Hg.a More pronounced, but also transient effect on blood PRESSURE was observed in patients taking nitrates (see "Contraindications" and "Interaction").

In a study of the hemodynamic effect of Vega Extra Cobra 130 Mg in a single dose of 100 mg in 14 patients with severe coronary artery disease (more than 70% of patients had stenosis of at least one coronary artery), systolic and diastolic resting pressure decreased by 7 and 6%, respectively, and pulmonary systolic pressure decreased by 9%. Cobra 120 Vega Extra did not affect cardiac output and did not interfere with blood flow in stenotic coronary arteries, and also led to an increase (by about 13%) of adenosine-induced coronary flow in both stenotic and intact coronary arteries. In a double-blind placebo-controlled study of 144 patients with erectile dysfunction and stable angina, taking antianginal drugs (except nitrates), exercise was performed until the severity of symptoms of angina increased. The duration of the exercise was significantly longer (19.9 seconds; 0.9–38.9 seconds) in patients taking Vega 120 Mg in a single dose of 100 mg, compared with patients receiving placebo.

In a randomized double-blind placebo-controlled study, the effect of changing the dose of Vega Coin (up to 100 mg) in men (n=568) with erectile dysfunction and hypertension, taking more than two antihypertensive drugs, was studied. Vega 120 Mg improved erection in 71% of men compared to 18% in the placebo group. The frequency of adverse effects was comparable to that in other groups of patients, as well as in those taking more than three antihypertensive drugs.

Studies of visual impairment. In some patients, 1 h after taking Vegal Extra at a dose of 100 mg with the Farnsworth-Mansell test 100 revealed a slight and transient violation of the ability to distinguish shades of color (blue/green). After 2 hours after taking the drug, these changes were absent. It is believed that color vision impairment is caused by inhibition of PDE-6, which is involved in the process of color transmission in the retina. Sildenafil Vega Extra 130 Mg had no effect on visual acuity, contrast perception, electroretinogram, IOP or pupil diameter.

Visual impairment

In rare cases, during post-approval use of all of the inhibitors of PDE5, including Vega 120 Mg, reported NESN is a rare disease and the cause of the decrease or loss of vision. Most of these patients had risk factors, such as decreased ratios of excavation diameter to optic disc (stagnant disc), age over 50, diabetes, hypertension, CHD, hyperlipidemia, and Smoking. In an observational study evaluated whether recent use of drugs class of inhibitors PDE-5 with an acute onset NESN. The results indicate approximately a 2-fold increase in risk NESN within 5T1/2 after application of the PDE-5 inhibitor. According to published literature, the annual incidence of npins IS 2.5–11.8 cases per 100,000 men aged ≥50 years in the General population. Patients should be advised to stop Vega 120 Mg therapy in case of sudden loss of vision and consult a doctor immediately.

Persons who have already had a case NESN have an increased risk of relapse NESN. Therefore, the doctor should discuss this risk with such patients, as well as the potential chance of adverse effects of PDE-5 inhibitors. PDE-5 inhibitors, including Cobra 120 Vega Extra, in such patients should be used with caution and only in situations where the expected benefit outweighs the risk. In patients with episodes of development PINZN with loss of vision in one eye receiving Vega 120 Mg is contraindicated (see "Contraindications").

A small number of patients with hereditary retinitis pigmentosa have genetically determined disorders of the PDE of the retina. Information about the safety of the drug Vega 120 Mg in patients with retinitis pigmentosa absent, so these patients should not be used Vega Extra 120 (see "Contraindications").

The pharmacokinetics of Vega 120 Mg in the recommended dose range is linear.

Suction. After intake of Vega 120 Mg is rapidly absorbed. Absolute bioavailability averages about 40% (25 to 63%). In vitro Vega 120 Mg at a concentration of about 1.7 ng/ml (3.5 nm) inhibits the activity of PDE-5 50%. After a single dose of Vega 120 Mg 100 mg average Cmax free Vegah Extra 130 in plasma men is about 18 ng/ml (38 nm). Cmax when taking Vega 120 Mg inside fasting is achieved for an average of 60 minutes (from 30 to 120 minutes). When taken in combination with fatty foods, the rate of absorption decreases: Cmax decreases by an average of 29%, and Tmax increases by 60 minutes, but the degree of absorption does not change significantly (AUC decreases by 11%).

Distribution. The average Vss of Vega 120 Mg is 105 l. the Association of Vega Coin and its main circulating N-demethyl metabolite with plasma proteins is about 96% and does not depend on the total concentration of the drug. Less than 0.0002% of the dose of Vega 120 Mg (an average of 188 ng) was found in sperm 90 minutes after taking the drug.

Metabolism. Vega 120 Mg is metabolized mainly in the liver by the action of CYP3A4 isoenzyme (main pathway) and CYP2C9 isoenzyme (minor pathway). The main circulating active metabolite, formed as a result of N-demethylation of Vega 120 Mg, undergoes further metabolism. The selectivity of this metabolite against PDE is comparable to that of Vega 120 Mg, and its activity against PDE-5 in vitro is about 50% of the activity of Vega 120 Mg. The concentration of the metabolite in the blood plasma of healthy volunteers was about 40% of the concentration of Vega 120 Mg. N-demethyl metabolite undergoes further metabolism; its T1/2 is about 4 no.

Breeding. The total clearance of Vega Pills is 41 l/h, and the final T1/2 — 3-5 h. After oral administration, as well as after I/V, Vega 120 Mg is excreted as metabolites, mainly by the intestine (about 80% oral dose) and to a lesser extent by the kidneys (about 13% oral dose).



Sildenafil Vega Extra 130 Mg

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