Brand Viagra

What is it used for?

Brand Viagra is used to fight the symptoms of erectile dysfunction. Taken prior to sexual activity, Viagra helps to achieve a firm erection every time sexual stimulation occurs, and maintain it for as long as it is required for a satisfactory sexual act to take place.

Active substance – sildenafil citrate; when you confirm your order, you agree to the terms and conditions that presuppose your awareness of the correct use of the drug, its recommended dose and possible side effects. Doctor consultation is required before you buy brand Viagra online. If you experience adverse reactions towards the drug, seek medical help.

Drug properties

Viagra is an oral erectile facilitator drug that is taken on demand, that is prior to a planned sexual activity. Viagra has sildenafil citrate as its main component; this substance relaxes the walls of blood vessels and helps them expand. This improves the blood flow in the penis, because its mechanism is based on inhibition of phosphodiesterase type 5 (PDE5), the substance which is found predominantly in the erectile bodies of the penis.

The mechanism described above restores the natural erectile function. Viagra acts only in the presence of sexual stimulation.

Doses and uses

Viagra is used as needed, a pill of the drug in the dose of 25mg, 50mg or 100mg taken approximately 60 minutes before the planned sexual activity. Take a tablet of Viagra by mouth with a sufficient amount of liquid, preferably water, but not grapefruit juice or anything containing alcohol or caffeine.

Drug interactions

Viagra can dangerously interact with other donors of nitric oxide (NO), therefore its concomitant use with nitrates (alpha-blockers, organic nitrites, and other drugs regulating high blood pressure) is contraindicated.

Viagra is incompatible with drugs that are metabolized by the enzyme called CYP3A4. Here belong drugs used to treat fungal infections and retroviruses.

This list is not full. Read about other pharmacological incompatibilities of Viagra here.

Warnings and precautions

Sexual activity can be considered dangerous in certain subsets of patients; if this is your case, you should not engage in sexual activity or take Viagra. Your doctor should establish what is appropriate for you.

Usually, the dose adjustment is not required in geriatric population, but it is subject to prescriber’s decision. Dose adjustment is required in case of decreased clearance rate is required in patients with kidney problems. In the event of severe kidney or liver insufficiency, do not use Viagra.

Contraindications

According to HealthNavigator, the official health support resource in New Zealand, Viagra should not be taken in case of the following diseases:

  • heart problems, including the history of stroke in the past 6 months
  • ulcer of stomach or duodenum
  • diseases of blood vessels
  • degenerative eye or retina diseases
  • Peyronie’s disease or priapism
  • high or low blood pressure
  • kidney or liver disease
  • sensitivity towards sildenafil or lactose

Side effects

Viagra, as any other drug, can trigger adverse events that are fleeting and as a rule appear only in the beginning of therapy. If they persist, discuss dose titration with your prescriber. The following side effects of Viagra are reported as the most common:

  • Headache
  • Redness of the face
  • Rhinitis
  • Diarrhea
  • Nausea
  • Dizziness
  • Skin reactions
  • Tingling in the ears
  • Vision disturbances

If you experience swelling, pain in the chest or irregular heartbeat, seek medical attention urgently.

Overdose

To avoid the risks of overdosing, do not take more than one recommended dose of Viagra. The symptoms of overdose include severe nausea, headache, migraines and other side effects in their stark form. Increase water intake and seek medical help if you suspect overdose with Viagra.

What should I do if I miss a dose?

Take a dose of Viagra as soon as you remember to. The rules of missed dose do not apply, as Viagra is taken as needed.

Storage

Store Viagra at room temperature away from the sources of direct light, heat and moisture.

Toxicity

Increased doses of Viagra have toxic effects on the liver and kidneys. Never take more than one dose of Viagra prescribed by your doctor. In case of overdose, seek help at your nearest poison center of medical office.