In addition to Viagra, other ED drugs available in the United States include avanafil (Stendra), tadalafil (Cialis) and vardenafil (Levitra). These all improve blood supply to the penis. In combination with sexual stimulation, the drugs can produce an erection sufficient to initiate and complete intercourse.

What drugs are not compatible with Viagra?

Before taking sildenafil, do not take sildenafil if you are taking or have recently taken riociguat (Adempas) or nitrates (medications for chest pain) such as isosorbide dinitrate (Isordil), isosorbide mononitrate (Monoket), and nitroglycerin (Minitran, Nitro-Dur, Nitromist, Nitrostat, others).

Is Viagra poisonous to humans?

Sildenafil may effect severe organ like cardiovascular system, reproductive system, pulmonary hypertension, retinal dysfunction etc. Due to overdose of the sildenafil the person get heart attack, stroke, irregular heartbeats and death may also occur in rare cases.

What is Viagra used for originally?

Sildenafil, the chemical name for Viagra, is an artificial compound that was originally synthesized and studied to treat hypertension (high blood pressure) and angina pectoris (a form of cardiovascular disease).

What is the best alternative to Viagra?

7 Doctor-Recommended Viagra Alternatives

  1. Cialis / Levitra / Stendra.
  2. L-Citrulline and L-Arginine Supplements.
  3. Vacuum Erection Device (VED)
  4. Low-Intensity Shockwave Therapy (LISWT)
  5. Intracavernosal Injections (ICI)
  6. Intraurethral Alprostadil.
  7. Penile Prosthesis.

Can Viagra make you bigger?

Make your penis larger than normal. If you have erectile dysfunction and normally find it difficult to get a complete erection, Viagra might cause your erection to feel bigger than normal. However, it will not make your penis physically larger than its regular size even if you take a higher dose.