Viagra (Sildenafil citrate) takes an important place in the global pharmaceutical market. The drug was first introduced to the world in 1998.
Viagra refers to a group of PDE-5 inhibitors that work by relaxing the blood vessels and allowing blood to flow into the penis as a result of natural erection.
Impotence (or erectile dysfunction) is defined as the inability to achieve or maintain an erection sufficient to perform intercourse, and the inability to achieve an erection as a result of sexual stimulation. Impotence usually does not have other symptoms, such as weak libido, inability to ejaculate or inability to achieve orgasm.
Recently, the global market received two new PDE-5 inhibitors, which work just like Viagra.
New drugs Cialis (Tadalafil) and Levitra (Vardenafil) are new drugs will work faster and longer than Viagra. If you are interested in buying Viagra, Cialis or Levitra online at a big discount, just visit the website of Canadian Neighbor Pharmacy. The website has an information guide that compares Viagra with its competitors, so that you can decide which of the new medicines for erectile dysfunction and other diseases would be better for you.
Viagra is popular due to the fact that it successfully solves the problems of 75% of men with erectile dysfunction, even in men who have had serious and long-term erectile problems. Viagra starts working within 30 minutes after taking and its effect can last up to 4 hours. However, in most cases, an erection disappears after ejaculation. Heavy, fatty foods and alcohol can increase the time it takes for the drug to work effectively.
Another important factor is that blue tablets should be taken orally, and there is no need for invasive medical procedures.
If you are taking medicine that contains nitrates (including nitroglycerin), you MUST NOT take Viagra.
Nitrates are used to treat sore throats (with pain in the chest) and heart disease.
Cardiovascular diseases, high blood pressure and high cholesterol can cause impotence. Many of the commonly prescribed drugs used to treat these ailments can interact with Viagra. Most doctors and pharmacists can prescribe such medicines.
If you have an heart condition when sexual activity can put load on the heart, make sure to visit your doctor for a full medical examination first.
You should inform your doctor if you have experienced any of the following health problems:
- Heart attack, angina, arrhythmias or chest pain;
- Liver or kidneys diseases;
- High blood pressure;
- Sickle-cell anemia, leukemia and other blood diseases;
- Any disease or deformation of the penis (such as Peyronie’s disease);
- Stomach ulcers.
- Any illness that you think could be risky if you take Viagra.
Viagra does not protect against sexually transmitted diseases, including HIV, and also does not act as a contraceptive.
Viagra is not intended for women, children, adolescents and men who do not have impotence.
Possible side effects of Viagra
All drugs have side effects, although the clinical trials of Viagra have concluded that it has very few side effects. These effects are usually mild and do not last a long time. The most common side effects of Viagra are headache and indigestion. Other consequences are blurred vision and sensitivity to light, although they are much less common. If erection lasts more than two or three hours (this condition is called priapism), or it becomes painful, you should see a doctor.
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Viagra: the consequences of uncontrolled drug intake
If we compare Viagra with injections into the penis, the drug has a number of advantages.
Viagra is a simple and convenient way to restore potency. Remember that this does not always do without consequences, so it can be dangerous. Viagra provides relief for erectile dysfunction associated with any psychological obstruction. But if the reasons are physiological, the drug will not be able to eliminate the disease, but will only become a temporary rescuer.
Probably, many men have a question: “Is this medicine safe without the doctor’s prescription?” Discussions about the benefits and harm of Viagra were started immediately after the drug went on sale. Some doctors believed that it was useful, and other specialists – that it was harmful.
If you carefully read the instructions, you can see a list of contraindications:
- stomach ulcer and bleeding;
- disease of the penis;
- sickle-cell anemia;
- using drugs that contain nitrates or used to treat erectile dysfunction;
- allergy to the drug or its components.
Remember that self-treatment can significantly harm an incompetent patient.
If you use the drug without control, it can cause male infertility, as the drug worsens the fertilizing potential of sperm. Viagra is often used by young men to increase the number of sexual acts per night and enhance sexual sensations. As a result, they get physiological drug dependence and can not achieve erection without drugs.
Men with cardiovascular disease should be very careful with Viagra. According to Canadian Neighbor Pharmacy, Viagra can cause thrombosis. But now there is no scientific proof of the connection between taking Viagra and thrombosis.
Do not forget that the drug increases potency, which causes intense strain on the body. Therefore, it is necessary to be careful if you have a weak heart, since the use of a medicine can cause even a fatal outcome.
It is necessary to separate concepts. We do not say that Viagra is dangerous. It is important to remember that taking any medication without doctor’s advice can lead to the most serious consequences.
And of course, you should not forget about side effects of Viagra. When combined with cimetidine, ketoconazole, erythromycin, BCCC, beta-blockers, oral and hypoglycemic drugs, the drug may cause: visual impairment, nasal congestion, dyspepsia, dizziness, “hot flushes” to the face, headache.