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Vega Extra Cobra (sildenafil citrate)

Vega Extra Cobra (sildenafil citrate)

$ 1.02 per pill

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Since the combined use of Sildenafil Vega Extra 130 and α-blockers can lead to symptomatic hypotension in some sensitive patients, Sildenafil Vega Extra 130 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 Sildenafil Vega Extra 130 should be started only after achieving stabilization of hemodynamic parameters in these patients. It should also consider reducing the initial dose of Sildenafil Vega Extra 130 (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

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Sildenafil citrate
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Information

Visual impairment

In rare cases, during post-approval use of all of the inhibitors of PDE5, including Vegah Extra 120 Mg, 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 Sildenafil Vega Extra 130 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 Sildenafil Vega Extra 130, 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 Visa 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 Sildenafil Vega Extra 130 in patients with retinitis pigmentosa absent, so these patients should not be used Sildenafil Tablets Vega Extra Cobra (see "Contraindications").

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

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

Breeding. The total clearance of Sildenafil Vega Extra 130 is 41 l/h, and the final T1/2 — 3-5 h. After oral administration, as well as after I/V, Sildenafil Vega Extra 130 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 Vega 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.

Influence of Sildenafil Vega Extra 130 on other drugs

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

Vegab Extra 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 Vegah Cobra in combination with nitrates or nitric oxide donators is contraindicated. While taking α-adrenoblocker doxazosin (4 and 8 mg) and Sildenafil Vega Extra 130 (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 Vega Extra 130 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 Vega Extra 130 (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 Extra 120 Mg 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.

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

Sildenafil Vega Extra 130 (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 Vega Extra 130 (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 Vega Pills in combination with antihypertensive agents does not lead to additional side effects.



Vega Extra Cobra

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