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Vega Extra Cobra (sildenafil citrate)

Vega Extra Cobra (sildenafil citrate)

$ 1.02 per pill

Quick Overview

The implementation of the physiological mechanism of erection is associated with the release of nitric oxide (NO) in the cavernous body during sexual stimulation. This, in turn, leads to an increase in the level of cGMP, the subsequent relaxation of smooth muscle tissue of the cavernous body and an increase in blood flow.

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 Vega Cobra 120 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 Extra Strong 120 enhances the hypotensive effect of nitrates (see "Interaction»);

the combined use of inhibitors of PDE5, including Vega Visa, 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.

Cardiovascular complications

During the post-marketing use of Cobra Vega Extra Strong 120 Mg for the treatment of erectile dysfunction, adverse events such as severe cardiovascular complications (including myocardial infarction, unstable angina, sudden cardiac death, ventricular arrhythmia, hemorrhagic stroke, transient ischemic attack, hypertension and hypotension) were reported, which had a temporary connection with the use of Vega Visa. Most of these patients, but not all of them, had risk factors for cardiovascular complications. Many of these adverse events were observed shortly after sexual activity, and some were observed after taking Vega Visa without subsequent sexual activity. It is not possible to establish a direct link between the reported adverse events and those or other factors.

Hypotension

Vega Visa has a systemic vasodilating effect, leading to a transient decrease in blood PRESSURE, which is not clinically significant and does not lead to any consequences in most patients. However, before prescribing Sildenafil Tablets Vega Extra Cobra, the doctor should carefully assess the risk of possible undesirable manifestations of vasodilating action in patients with relevant diseases, especially against the background of sexual activity. Increased susceptibility to vasodilators is observed in patients with obstruction of the output tract of the left ventricle (aortic stenosis, GOCMP), as well as with the rare syndrome of multiple systemic atrophy, manifested by a severe violation of the regulation of blood PRESSURE from the autonomic nervous system.

Since the combined use of Vega Visa and α-blockers can lead to symptomatic hypotension in some sensitive patients, Vega Visa should be used with caution in patients taking α-blockers (see "Interaction"). To minimize the risk of postural hypotension in patients taking α-blockers, the drug Vega Visa should be started only after achieving stabilization of hemodynamic parameters in these patients. It should also consider reducing the initial dose of Vega Visa (see. "Dosage and administration"). The doctor should inform patients about what actions should be taken in case of symptoms of postural hypotension.

Clinical data

Cardiac studies. The use of Vegal Extra 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 Visa 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 Visa 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%. Vega Visa 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 Visa 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 Visa (up to 100 mg) in men (n=568) with erectile dysfunction and hypertension, taking more than two antihypertensive drugs, was studied. Vegal Extra 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 Vega Visa 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. Vega Visa had no effect on visual acuity, contrast perception, electroretinogram, IOP or pupil diameter.

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

Suction. After intake of Vega Visa is rapidly absorbed. Absolute bioavailability averages about 40% (25 to 63%). In vitro Vega Visa 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 Visa 100 mg average Cmax free Vega Visa in plasma men is about 18 ng/ml (38 nm). Cmax when taking Vega Visa 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 Extra Cobra 130 Mg is 105 l. the Association of Vegah Extra 130 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 Visa (an average of 188 ng) was found in sperm 90 minutes after taking the drug.

Metabolism. Vegah Extra 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 Extra, undergoes further metabolism. The selectivity of this metabolite against PDE is comparable to that of Vega Visa, and its activity against PDE-5 in vitro is about 50% of the activity of Vega Visa. The concentration of the metabolite in the blood plasma of healthy volunteers was about 40% of the concentration of Sildenafil Vega Extra 130. N-demethyl metabolite undergoes further metabolism; its T1/2 is about 4 no.

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



Vega Extra Strong 120

Reviews

Vega-extra84 out of100 with30 ratings
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