Viagra Side Effects

Viagra has a good tolerability and side effects are minimal. Still, you must beware potential side effects of this drug:

Nervous system and sensory organs:

  • fatigue;
  • dizziness;
  • headaches;
  • hypertension;
  • ataxia;
  • tremor;
  • neuralgia;
  • the weakening of reflexes;
  • paresthesia;
  • hypoesthesia;
  • syncope;
  • depression;
  • sleep disturbances (insomnia/drowsiness);
  • conjunctivitis;
  • photophobia;
  • bleeding in the eyeball;
  • mydriasis;
  • cataract;
  • xerophthalmia;
  • pain in eyeballs and ears;
  • tinnitus;
  • deafness.

Cardiovascular system and blood (blood-forming, hemostasis):

  • hypotension;
  • orthostatic hypotension;
  • tachycardia;
  • heart palpitations;
  • myocardial ischemia;
  • cardiac angina;
  • cardiomyopathy;
  • cardiac insufficiency;
  • ECG changes, including AV-block;
  • cardiac arrest;
  • cerebral vessels thrombosis;
  • anemia;
  • leucopenia.

Respiratory system:

  • pharyngitis;
  • sinusitis;
  • laryngitis;
  • bronchitis;
  • dyspnea;
  • increased sputum amount;
  • increased cough;
  • asthma.

Digestive tract:

  • glossitis;
  • gingivitis;
  • stomatitis;
  • dry mouth;
  • dysphagia;
  • esophagitis;
  • nausea;
  • gastritis;
  • gastroenteritis;
  • colitis;
  • rectal hemorrhages;
  • changes in liver biochemical parameters.

Metabolism:

  • thirst;
  • hypernatremia;
  • arthrolithiasis;
  • hyperuricemia;
  • labile diabetes;
  • hyper- and hypoglycemia.

Genitourinary system:

  • nocturia;
  • frequent urination;
  • cystitis;
  • uroclepsia;
  • ejaculation disorders;
  • anorgasmia;
  • swelling of genitals;
  • gynecomastia.

Musculoskeletal system:

  • arthritis;
  • arthrosis;
  • myalgia;
  • myasthenia;
  • tendon rupture;
  • tenosynovitis;
  • synovitis.

Skin:

  • urticaria fever;
  • herpes;
  • itching;
  • skin ulceration;
  • contact dermatitis;
  • exfoliative dermatitis.

Results of Clinical Studies

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The fact is that about 550 patients received preparation for a long time (over a year) during «Pfizer» experiment, other participants were taking the drug during the shorter period of time.

Opponents of Viagra also think that the drug too quickly received approval from «regulatory authorities» (it took only six months from the date of filing the application for permission till approval). In general, experts for prevention of side effects or their minimization advise not to take medicines that exist on the market for less than five years – this is the basic term, during which the drug usually «shows itself» in terms of negative characteristics. Although medications, that have passed this test, are not prevented from «fiasco» in terms of harm to health.

Thus, the question about consequences of long-term Viagra use is very complex: the drug has been created recently and there are no people who, as a result of long-term use, could throw light on this problem. Another thing is that the drug exists on the market for several years and its «fans» are not becoming less in number, there are also no won litigations with company-manufacturer.