Vega 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.

Cobra Vega Extra Strong 120mg 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 Vega Extra 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. Vega 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 Extra Vega is sexual stimulation.

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

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 Vega 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 Vegah Extra 120 Mg, 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 Vega Visa in patients with a tendency to bleeding or exacerbation of gastric ulcer and duodenal ulcer are not available, so the drug Vega Extra Cobra 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 (Vega Cobra — 12.9%, placebo — 0%) than in patients with primary pulmonary arterial hypertension (Cobra Vega 120 — 3%, placebo — 2.4%). Patients receiving Vega Pills 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 Cobra Vega Extra Strong 120 Mg 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 Vega Extra Strong 120 any negative effect on the ability to drive a car or other means was not observed. However, since when taking Cobra Vega 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.

Clinical data

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

Side effect

The most common side effects were headache and tides.

Usually the side effects of Vegah Extra 120 Mg 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.

Vega 120 Mg