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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
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$ 1.27 per pill
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Vega Extra Cobra
Sildenafil citrate
120 mg × 90 pills
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$ 1.53 per pill
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Vega Extra Cobra
Sildenafil citrate
120 mg × 60 pills
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$ 1.83 per pill
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Vega Extra Cobra
Sildenafil citrate
120 mg × 30 pills
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$ 2.13 per pill
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Vega Extra Cobra
Sildenafil citrate
120 mg × 20 pills
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$ 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

Dosage and administration

Inside, can be taken with or without water. When taking the drug, you should put a tablet, dispersed in the oral cavity, on the tongue, after which it will quickly dissolve, and it can be swallowed. The tablet should be taken immediately after opening the blister. Patients who are recommended a dose of Vega Pills 100 mg, the second tablet of Extra Vega 50 mg should be taken after complete dissolution of the first tablet.

The recommended dose for most adult patients is 50 mg approximately 1 hour before sexual activity. Taking into account the effectiveness and tolerability of the dose can be increased to 100 mg or reduced to 25 mg (only tablets coated with a film, the appropriate dosage). The maximum recommended dose is 100 mg. Patients who are recommended a dose of Sildenafil Tablets Vega Extra Cobra 100 mg, it is necessary to take 2 table., dispersible in the oral cavity, dosage 50 mg consecutively one after another. The maximum recommended frequency of use — 1 time per day. It should be borne in mind that the absorption of Sildenafil Tablets Vega Extra Cobra significantly slows down when used in combination with fatty foods.

Special patient groups

Renal impairment. In mild to moderate renal failure dose adjustment is not required, in severe renal failure (Creatinine CL <30 ml/min) Vega Extra Cobra 120 dose should be reduced to 25 mg.

Hepatic impairment. Since the excretion of Sildenafil Tablets Vega Extra Cobra is disturbed in patients with liver damage (in particular, cirrhosis), the dose of Sildenafil Tablets Vega Extra Cobra should be reduced to 25 mg.

Joint application with other drugs. Joint use with ritonavir is not recommended. In any case, the maximum dose of Cobra Vega 120 Mg under any circumstances should not exceed 25 mg, and the frequency of application — 1 time in 48 h (see "Interaction").

When combined with inhibitors of CYP3A4 isoenzyme (erythromycin, saquinavir, ketoconazole, Itraconazole), the initial dose of Cobra Vega Extra should be 25 mg (see "Interaction").

To minimize the risk of postural hypotension in patients taking α-blockers, Vega Visa should be started only after achieving hemodynamic stabilization in these patients. Consideration should also be given to reducing the initial dose of Sildenafil Tablets Vega Extra Cobra (see special instructions and Interactions).

Old age. Adjustment of the dose of Sildenafil Tablets Vega Extra Cobra is not required.

Clinical data

In a placebo-controlled cross-examination of patients with proven early age macular degeneration (n=9), Sildenafil Tablets Vega 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 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 Sildenafil Tablets Vega 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 Vega Extra 130 Mg Cobra 25 mg), 74% (dose Sildenafil Tablets Vega Extra Cobra 50 mg) and 82% (dose Sildenafil Tablets Vega Extra Cobra 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 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 Vega Extra 120.

Pharmacokinetics

The pharmacokinetics of Sildenafil Tablets Vegah Extra Cobra in the recommended dose range is linear.

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

Metabolism. Vega Extra 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 Vega Extra Cobra 120, undergoes further metabolism. The selectivity of this metabolite against PDE is comparable to that of Vegah Extra 120 Mg, and its activity against PDE-5 in vitro is about 50% of the activity of Vegah Extra 120 Indication. 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 Signature Cobra Vega is 41 l/h, and the final T1/2 — 3-5 h. After oral administration, as well as after I/V, Signature Cobra Vega is excreted as metabolites, mainly by the intestine (about 80% oral dose) and to a lesser extent by the kidneys (about 13% oral dose).

Influence of Sildenafil Tablets Vega Extra Cobra on other drugs

Sildenafil Vega Extra 130 Mg is a weak inhibitor of cytochrome P450 — 1A2, 2C9, 2C19, 2D6, 2E1 and 3A4 ISOENZYMES (IC50 >150 µmol). When taking Cobra Vega Extra Strong 120 Mg in recommended doses, its Cmax is about 1 µmol, so it is unlikely that Sildenafil Tablets Vega Extra Cobra can affect the clearance of the substrates of these isoenzymes.

Vega Cobra 120 Mg increases the hypotensive effect of nitrates both with long-term use of the latter, and with their appointment for urgent indications. In this regard, the use of Sildenafil Tablets Vega Extra Cobra in combination with nitrates or nitric oxide donators is contraindicated. While taking α-adrenoblocker doxazosin (4 and 8 mg) and Sildenafil Tablets Vega Extra Cobra (25, 50 and 100 mg) in patients with benign prostate hyperplasia with stable hemodynamics, the average additional decrease in sad/dad in the supine position was 7/7, 9/5 and 8/4 mm Hg.article, respectively, while in the standing position — 6/6, 11/4 mmHg, and 4/5.art. respectively. Reported rare cases of symptomatic postural hypotension in such patients, manifested in the form of dizziness (without fainting). In some sensitive patients receiving α-blockers, simultaneous use of Sildenafil Tablets Vega Extra Cobra can lead to symptomatic hypotension.

There were no signs of significant interaction with tolbutamide (250 mg) or warfarin (40 mg), which are metabolized by CYP2C9 isoenzyme.

Sildenafil Tablets Vega Extra Cobra (100 mg) has no effect on the pharmacokinetics of the HIV protease inhibitor, saquinavir, which is a substrate of CYP3A4 isoenzyme, at its constant level in the blood.

The simultaneous use of Vega Cobra 120 at equilibrium (80 mg 3 times a day) leads to an increase in the AUC and Cmax of bosentan (125 mg 2 times a day) by 49.8 and 42%, respectively.

Sildenafil Vega Extra 120 (50 mg) does not cause an additional increase in bleeding time when taking acetylsalicylic acid (150 mg).

Vega Extra 120 (50 mg) does not increase the hypotensive effect of alcohol in healthy volunteers with Cmax of alcohol in the blood on average 0.08‰ (80 mg/DL).

In patients with hypertension, no signs of interaction of Sildenafil Tablets Vega Extra Cobra (100 mg) with amlodipine were found. The average additional reduction in blood PRESSURE in the supine position is 8 mm Hg.V. (systolic) and 7 mm Hg.V. (diastolic).

The use of Sildenafil Tablets Vega Extra Cobra in combination with antihypertensive agents does not lead to additional side effects.



Vegah Extra 130

Reviews

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