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Information

Purchase Viagra For Bitcoin Online Pharmacy 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.

Buy Viagra With Bitcoins 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 Purchase Viagra For Bitcoin Online Pharmacy 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. Purchase Viagra For Bitcoin Online Pharmacy 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 Generic Kamagra For Bitcoin is sexual stimulation.

Purchase Viagra For Bitcoin Online Pharmacy restores impaired erectile function in conditions of sexual stimulation by increasing blood flow to the cavernous bodies of the penis.

Cardiovascular complications

During the post-marketing use of Cheap Viagra Professional Accept Bitcoin for the treatment of erectile dysfunction, adverse events such as severe cardiovascular complications (including myocardial infarction, unstable angina, sudden cardiac death, ventricular arrhythmia, hemorrhagic stroke, transient ischemic attack, hypertension and hypotension) were reported, which had a temporary connection with the use of Purchase Viagra For Bitcoin Online Pharmacy. Most of these patients, but not all of them, had risk factors for cardiovascular complications. Many of these adverse events were observed shortly after sexual activity, and some were observed after taking Purchase Viagra For Bitcoin Online Pharmacy without subsequent sexual activity. It is not possible to establish a direct link between the reported adverse events and those or other factors.

Visual impairment

In rare cases, during post-approval use of all of the inhibitors of PDE5, including Buy Female Viagra With Bitcoins, 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 of developing 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 Purchase Viagra For Bitcoin Online Pharmacy 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 Purchase Viagra For Bitcoin Online Pharmacy, in such patients should be used with caution and only in situations where the expected benefit outweighs the risk.

When using the drug Buy Viagra Bitcoin in doses exceeding the recommended, adverse events were similar to those noted above, but usually more common.

*Side effects identified during post-marketing studies.

Interaction

Effect of other drugs on the pharmacokinetics of Purchase Viagra For Bitcoin Online Pharmacy

The metabolism of The Purchase Of Extra Super Viagra occurs mainly under the action of CYP3A4 isoenzyme (main pathway), so inhibitors of this isoenzyme can reduce the clearance of Cheap Viagra Professional Accept Bitcoin, and inducers, respectively, increase the clearance of Purchase Viagra For Bitcoin Online Pharmacy. A decrease in the clearance of Buy Female Viagra With Bitcoins with simultaneous use of inhibitors of CYP3A4 isoenzyme (ketoconazole, erythromycin, cimetidine).

Cimetidine (800 mg), a nonspecific inhibitor of CYP3A4 isoenzyme, when taken together with Purchase Viagra For Bitcoin Online Pharmacy (50 mg) causes an increase in the concentration of Buy Viagra With Bitcoins in plasma by 56%.

A single dose of 100 mg of Buy Viagra Bitcoin together with erythromycin (500 mg/day 2 times a day for 5 days), a moderate inhibitor of CYP3A4 isoenzyme, while achieving a constant concentration of erythromycin in the blood, leads to an increase in the AUC of Buy Viagra With Bitcoin by 182%.

When co-administered Generic Viagra For Bitcoin (once 100 mg) and saquinavir (1200 mg/day 3 times daily), an inhibitor of HIV protease and of CYP3A4, on the background to achieve a constant concentration of saquinavir in the blood, Cmax of Purchase Viagra For Bitcoin Online Pharmacy was increased by 140% and the AUC increased by 210%.

Stronger inhibitors of CYP3A4 isoenzyme, such as ketoconazole and Itraconazole, can cause more pronounced changes in the pharmacokinetics of Purchase Viagra For Bitcoin Online Pharmacy.

The simultaneous use of Purchase Viagra For Bitcoin Online Pharmacy (100 mg once) and ritonavir (500 mg 2 times a day), an inhibitor of HIV protease and a strong inhibitor of cytochrome P450, on the background to achieve a constant concentration of ritonavir in the blood leads to an increase in Cmax of Purchase Viagra For Bitcoin Online Pharmacy by 300% (4 times), a AUC by 1000% (11-fold). After 24 h, the concentration of Buy Sildenafil Bitcoin in blood plasma is about 200 ng/ml (after a single application of one Purchase Viagra For Bitcoin Online Pharmacy — 5 ng/ml). This is consistent with the ritonavir effect on a wide range of cytochrome P450 substrates. Purchase Viagra For Bitcoin Online Pharmacy does not affect the pharmacokinetics of ritonavir. Given these data, the simultaneous reception of ritonavir and Viagra Bitcoin Pharmacy Online is not recommended. In any case, the maximum dose of Purchase Viagra For Bitcoin Online Pharmacy under any circumstances should not exceed 25 mg for 48 hours. If Purchase Viagra For Bitcoin Online Pharmacy is taken in the recommended doses, patients receiving strong inhibitors of CYP3A4 isoenzyme at the same time, then Cmax free Kamagra Bitcoin Pharmacy Online does not exceed 200 nm, and the drug is well tolerated.

Single administration of antacid (magnesium hydroxide/aluminum hydroxide) does not affect the bioavailability of Purchase Viagra For Bitcoin Online Pharmacy.

Studies involving healthy volunteers with simultaneous use of endothelin receptor antagonist, bosentan (CYP3A4 isoenzyme inducer (moderate), CYP2C9, and possibly CYP2C19) in Css (125 mg 2 times a day) and Purchase Viagra For Bitcoin Online Pharmacy in Css (80 mg 3 times a day) showed a decrease in AUC and Cmax Purchase Viagra For Bitcoin Online Pharmacy by 62.6 and 52.4%, respectively. Pay For Kamagra With Bitcoin increased the AUC and Cmax of bosentan by 49.8 and 42%, respectively.

It is assumed that the simultaneous use of Purchase Viagra For Bitcoin Online Pharmacy with powerful inducers of CYP3A4 isoenzyme, such as rifampicin, can lead to a greater decrease in the concentration of Purchase Viagra For Bitcoin Online Pharmacy in blood plasma.

CYP2D6 isoenzyme inhibitors (SSRIs, tricyclic antidepressants), thiazide and thiazide-like diuretics, ACE inhibitors and calcium antagonists have no effect on the pharmacokinetics of Purchase Viagra For Bitcoin Online Pharmacy.

Azithromycin (500 mg/day for 3 days) has no effect on AUC, Cmax, Tmax, excretion rate constant and T1/2 Purchase Viagra For Bitcoin Online Pharmacy or its main circulating metabolite.

Side effect

The most common side effects were headache and tides.

Usually the side effects of Purchase Viagra For Bitcoin Online Pharmacy 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 Buy Viagra With Bitcoins 100 mg, the second tablet of Purchase Viagra For Bitcoin Online Pharmacy 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 Purchase Viagra For Bitcoin Online Pharmacy 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 Pay For Female Viagra With Bitcoin 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) Purchase Viagra For Bitcoin Online Pharmacy dose should be reduced to 25 mg.

Hepatic impairment. Since the excretion of Purchase Viagra For Bitcoin Online Pharmacy is disturbed in patients with liver damage (in particular, cirrhosis), the dose of Purchase Viagra For Bitcoin Online Pharmacy 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 Cheap Viagra Professional Accept Bitcoin 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 Buy Viagra With Bitcoins should be 25 mg (see "Interaction").

To minimize the risk of postural hypotension in patients taking α-blockers, Purchase Viagra For Bitcoin Online Pharmacy should be started only after achieving hemodynamic stabilization in these patients. Consideration should also be given to reducing the initial dose of Purchase Viagra For Bitcoin Online Pharmacy (see special instructions and Interactions).

Old age. Adjustment of the dose of Buy Viagra With Bitcoins is not required.

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