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Vega Extra Cobra (sildenafil citrate)

Vega Extra Cobra (sildenafil citrate)

$ 1.02 per pill

Quick Overview

Selective Cobra Vega Extra Strong 120 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. Cobra Vega Extra Strong 120 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
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$ 1.02 per pill
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Vega Extra Cobra
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120 mg × 120 pills
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Information

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

Suction. After intake of Sildenafil Tablets Vegah Extra Cobra is rapidly absorbed. Absolute bioavailability averages about 40% (25 to 63%). In vitro Vega Coin at a concentration of about 1.7 ng/ml (3.5 nm) inhibits the activity of PDE-5 50%. After a single dose of Sildenafil Tablets Vegah Extra Cobra 100 mg average Cmax free Vega 120 Mg 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 Vega Extra Cobra 130 Mg is 105 l. the Association of Cobra 120 Vega 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 Sildenafil Tablets Vegah Extra Cobra (an average of 188 ng) was found in sperm 90 minutes after taking the drug.

Metabolism. Vega Coin 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 Vegal Extra, and its activity against PDE-5 in vitro is about 50% of the activity of Sildenafil Vega Extra 130 Mg. 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 Sildenafil Tablets Vegah Extra Cobra is 41 l/h, and the final T1/2 — 3-5 h. After oral administration, as well as after I/V, Cobra 120 Vega 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).

Side effect

The most common side effects were headache and tides.

Usually the side effects of Sildenafil Tablets Vegah Extra Cobra are mild or moderate and are transient.

Studies using a fixed dose have shown that the frequency of some adverse events increases with increasing dose.

The frequency of adverse reactions is presented in the following classification: very often — ≥10%; often — ≥1% and <10%; infrequently — ≥0.1% and <1%; rarely — ≥0.01% and <0.1%; very rarely — <0.01%; frequency unknown — cannot be determined based on available data.

Co side of the immune system: infrequently — hypersensitivity reactions (including skin rash), allergic reactions.

On the part of the organ of vision: often — blurred vision, blurred vision, cyanopsia; rarely, eye pain, photophobia, photopsia, chromatopsia, eye redness/injection of the sclera, changing the brightness of cvetovete, mydriasis, conjunctivitis, hemorrhage in the tissue of the eye, cataract, a disorder of the lacrimal apparatus; rarely — swelling of the eyelids and adjacent tissues, a feeling of dryness in the eyes, the presence of iridescent circles in the field of view around the light source, increased fatigue of the eyes, vision of objects in yellow (xanthopsia), vision of objects in red (erythropsia), conjunctival hyperemia, irritation of the mucous membrane of the eyes, unpleasant sensations in the eyes; the frequency is unknown — NPINZN, occlusion of retinal veins, visual field defect, diplopia*, temporary vision loss or decreased visual acuity, increased IHD, edema retina, retinal vascular disease, vitreous detachment/vitreal traction.

On the part of the organ of hearing: infrequent — a sudden decrease or loss of hearing, tinnitus, pain in the ears.

From the CCC: often — tides; infrequently — tachycardia, palpitations, decreased blood PRESSURE, increased heart rate, unstable angina, AV-blockade, myocardial infarction, cerebral thrombosis, cardiac arrest, heart failure, deviations in ECG readings, cardiomyopathy; rarely — atrial fibrillation, sudden cardiac death*, ventricular arrhythmia*.

The blood and lymphatic system: rarely — anemia, leukopenia.

On the part of metabolism and nutrition: infrequently — a feeling of thirst, swelling, gout, uncompensated diabetes, hyperglycemia, peripheral edema, hyperuricemia, hypoglycemia, hypernatremia.

From the respiratory system: often — nasal congestion; infrequent — nosebleeds, rhinitis, asthma, dyspnea, laryngitis, pharyngitis, sinusitis, bronchitis, increased volume of sputum, increased cough; rarely — a feeling of tightness in the throat, dryness of the nasal mucosa, swelling of the nasal mucosa.

From the digestive tract: often — nausea, dyspepsia; uncommon — GERD, vomiting, pain in the abdomen, dryness of the mucous membrane of the mouth, glossitis, gingivitis, colitis, dysphagia, gastritis, gastroenteritis, esophagitis, stomatitis, rejection of liver function tests from normal, rectal bleeding; rarely, hypesthesia of the mucous membrane of the oral cavity.

On the part of the musculoskeletal system: often — back pain; infrequently — myalgia, pain in the limbs, arthritis, arthrosis, tendon rupture, tenosynovitis, bone pain, myasthenia gravis, synovitis.

From the genitourinary system: infrequently — cystitis, nicturia, breast enlargement, urinary incontinence, hematuria, ejaculation disorders, genital edema, anorgasmia, hematospermia, damage to the tissues of the penis; rarely — prolonged erection and/or priapism.

From the Central and peripheral nervous system: very often — headache; often — dizziness; infrequently — drowsiness, migraine, ataxia, hypertension, neuralgia, neuropathy, paresthesia, tremor, vertigo, symptoms of depression, insomnia, unusual dreams, increased reflexes, hypesthesia; rarely — convulsions*, repeated convulsions*, fainting.

On the part of the skin and subcutaneous tissues: infrequently — skin rash, urticaria, herpes simplex, itching, sweating, skin ulceration, contact dermatitis, exfoliative dermatitis; the frequency is unknown — Stevens-Johnson syndrome, toxic epidermal necrolysis.

Other: infrequently — a feeling of heat, swelling of the face, photosensitivity reaction, shock, asthenia, fatigue, pain of various localization, chills, accidental falls, chest pain, accidental injuries; rarely — irritability.

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 120 Mg 100 mg, the second tablet of Vega Extra 120 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 Vegah 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 Vegah 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) Sildenafil Tablets Vegah Extra Cobra dose should be reduced to 25 mg.

Hepatic impairment. Since the excretion of Sildenafil Tablets Vegah Extra Cobra is disturbed in patients with liver damage (in particular, cirrhosis), the dose of Vegah Extra 130 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 Sildenafil Tablets Vegah Extra Cobra 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 Sildenafil Tablets Vegah Extra Cobra should be 25 mg (see "Interaction").

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

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

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 Vega Pills 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.



Cobra Vega Extra Strong 120 Mg

Reviews

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