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Vega Extra Cobra (sildenafil citrate)

Vega Extra Cobra (sildenafil citrate)

$ 1.02 per pill

Quick Overview

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

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

the combined use of inhibitors of PDE5, including Vegab Extra, 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 Signature Cobra Vega 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.

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

Suction. After intake of Vegab Extra is rapidly absorbed. Absolute bioavailability averages about 40% (25 to 63%). In vitro Vegab Extra at a concentration of about 1.7 ng/ml (3.5 nm) inhibits the activity of PDE-5 50%. After a single dose of Vegab Extra 100 mg average Cmax free Vegab Extra in plasma men is about 18 ng/ml (38 nm). Cmax when taking Sildenafil Vega Extra 130 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 Vegab Extra is 105 l. the Association of Vegab Extra 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 Vegab Extra (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 Cobra Vega, undergoes further metabolism. The selectivity of this metabolite against PDE is comparable to that of Cobra Vega 120 Mg, and its activity against PDE-5 in vitro is about 50% of the activity of Vegab Extra. The concentration of the metabolite in the blood plasma of healthy volunteers was about 40% of the concentration of Sildenafil Tablets Vega Extra Cobra. N-demethyl metabolite undergoes further metabolism; its T1/2 is about 4 no.

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

Clinical data

In a placebo-controlled cross-examination of patients with proven early age macular degeneration (n=9), Vegah Extra 130 was well tolerated at a single dose of 100 mg. There were no clinically significant changes in vision evaluated by special visual tests (visual acuity, Amsler lattice, color perception, color simulation, Humphrey perimeter and photostress).

Efficiency. The efficacy and safety of Vega 120 Mg were evaluated in 21 randomized double-blind placebo-controlled studies lasting up to 6 months in 3000 patients from 19 to 87 years with erectile dysfunction of different etiology (organic, psychogenic or mixed). The efficacy of the drug was evaluated globally using an erection diary, an international erectile function index (validated questionnaire on the state of sexual function) and a partner survey.

The effectiveness of Vegab Extra, defined as the ability to achieve and maintain an erection sufficient for satisfactory sexual intercourse, has been demonstrated in all studies and confirmed in long-term studies lasting 1 year. In studies with the use of fixed-dose proportion of patients reporting that treatment improved their erections were 62% (dose of Cobra 120 Vega Extra 25 mg), 74% (dose Vegab Extra 50 mg) and 82% (dose Vega Extra Cobra 130 Mg 100 mg) compared to 25% in the placebo group. Analysis of the international index of erectile function showed that in addition to improving erection treatment Cobra Vega Extra Strong 120 Mg also increased the quality of orgasm, allowing to achieve satisfaction from sexual intercourse and overall satisfaction.

According to the generalized data, 59% of patients with diabetes, 43% of patients who underwent radical prostatectomy and 83% of patients with spinal cord injuries (against 16, 15 and 12% in the placebo group, respectively) were reported to have improved erection in the treatment of Cobra Vega.

Pharmacokinetics

Visual impairment

In rare cases, during post-approval use of all of the inhibitors of PDE5, including Vegab Extra, 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 Vegab Extra 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 Signature Cobra Vega, 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 Cobra 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 Vegab Extra in patients with retinitis pigmentosa absent, so these patients should not be used Vegab Extra (see "Contraindications").



Sildenafil Tablets Vega Extra Cobra

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