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Vega Extra Cobra (sildenafil citrate)

Vega Extra Cobra (sildenafil citrate)

$ 1.02 per pill

Quick Overview

The use of Sildenafil Tablets Vegah Extra Cobra 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 Sildenafil Tablets Vegah Extra Cobra 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").

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
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Vega Extra Cobra
Sildenafil citrate
120 mg × 90 pills
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Vega Extra Cobra
Sildenafil citrate
120 mg × 60 pills
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Vega Extra Cobra
Sildenafil citrate
120 mg × 30 pills
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Vega Extra Cobra
Sildenafil citrate
120 mg × 20 pills
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Vega Extra Cobra
Sildenafil citrate
120 mg × 10 pills
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Information

Clinical data

In a placebo-controlled cross-examination of patients with proven early age macular degeneration (n=9), Sildenafil Tablets Vegah Extra Cobra 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 Sildenafil Tablets Vegah Extra Cobra 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 Sildenafil Tablets Vegah Extra Cobra, 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 Sildenafil Tablets Vegah Extra Cobra 25 mg), 74% (dose Vega Extra 50 mg) and 82% (dose Vega Extra Strong 120 100 mg) compared to 25% in the placebo group. Analysis of the international index of erectile function showed that in addition to improving erection treatment Sildenafil Tablets Vegah Extra Cobra 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 Extra Strong 120 Mg.

Pharmacokinetics

Sildenafil Tablets Vegah Extra Cobra is a potent selective inhibitor of cGMP-specific PDE-5.



Mechanism of action

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.

Sildenafil Tablets Vegah Extra Cobra does not have a direct relaxing effect on the isolated cavernous human body, but enhances the effect of nitric oxide by inhibiting PDE-5, which is responsible for the disintegration of cGMP.

Selective Sildenafil Tablets Vegah Extra Cobra 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 Tablets Vegah Extra Cobra 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.

A prerequisite for the effectiveness of Sildenafil Tablets Vegah Extra Cobra is sexual stimulation.

Sildenafil Tablets Vegah Extra Cobra restores impaired erectile function in conditions of sexual stimulation by increasing blood flow to the cavernous bodies of the penis.

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

Suction. After intake of Vega Extra Cobra 120 is rapidly absorbed. Absolute bioavailability averages about 40% (25 to 63%). In vitro Cobra 120 Vega 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 Signature Cobra Vega 100 mg average Cmax free Sildenafil Tablets Vegah Extra Cobra in plasma men is about 18 ng/ml (38 nm). Cmax when taking Sildenafil Tablets Vegah Extra Cobra 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 Sildenafil Tablets Vegah Extra Cobra is 105 l. the Association of Sildenafil Tablets Vegah Extra Cobra 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 Sildenafil Tablets Vegah Extra Cobra (an average of 188 ng) was found in sperm 90 minutes after taking the drug.

Metabolism. Vega Cobra 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 Sildenafil Tablets Vegah Extra Cobra, undergoes further metabolism. The selectivity of this metabolite against PDE is comparable to that of Sildenafil Tablets Vegah Extra Cobra, and its activity against PDE-5 in vitro is about 50% of the activity of Cobra Vega Extra Strong 120mg. The concentration of the metabolite in the blood plasma of healthy volunteers was about 40% of the concentration of Sildenafil Tablets Vegah Extra Cobra. N-demethyl metabolite undergoes further metabolism; its T1/2 is about 4 no.

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

Hearing impairment

Some post-marketing and clinical studies have reported cases of sudden hearing loss or impairment associated with the use of all PDE-5 inhibitors, including Sildenafil Tablets Vega Extra Cobra. Most of these patients had risk factors for sudden impairment or hearing loss. There is no causal relationship between the use of PDE-5 inhibitors and sudden hearing impairment or hearing loss. In case of sudden hearing impairment or hearing loss while taking Vegal Extra, consult a doctor immediately.

Bleedings

Sildenafil Tablets Vegah Extra Cobra enhances the antiplatelet effect of sodium nitroprusside, a nitric oxide donator, on human platelets in vitro. Data on the safety of Cobra Vega 120 Mg in patients with a tendency to bleeding or exacerbation of gastric ulcer and duodenal ulcer are not available, so the drug Cobra Vega 120 Mg in these patients should be used with caution (see With caution).

The incidence of nosebleeds in patients with pulmonary hypertension associated with diffuse connective tissue diseases was higher (Vegah Extra 130 — 12.9%, placebo — 0%) than in patients with primary pulmonary arterial hypertension (Sildenafil Tablets Vegah Extra Cobra — 3%, placebo — 2.4%). Patients receiving Vegal Extra in combination with an antagonist of vitamin K, the frequency of nasal bleeding was higher (8.8 percent) than patients who were not taking an antagonist of vitamin K (1.7 percent).

Use in conjunction with other means for the treatment of erectile dysfunction

The safety and efficacy of Sildenafil Tablets Vegah Extra Cobra together with other PDE-5 inhibitors or other drugs for the treatment of pulmonary hypertension containing Sildenafil Tablets Vegah Extra Cobra (eg, Revatsio®), or other means for the treatment of erection disorders have not been studied, so the use of such combinations is not recommended (see "Contraindications").

Influence on the ability to drive and mechanisms. In patients receiving Sildenafil Tablets Vegah Extra Cobra any negative effect on the ability to drive a car or other means was not observed. However, since when taking Sildenafil Tablets Vegah Extra Cobra may develop dizziness, lowering blood PRESSURE, the development of chromatopsia, blurred vision, etc. side effects, care should be taken when driving and doing other potentially dangerous activities that require increased concentration and speed of psychomotor reactions. Also, you should be careful about the individual action of the drug in these situations, especially at the beginning of treatment and when changing the dosage regimen.



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