Comparison of Top ED Medications

Sildenafil
Tadalafil
Vardenafil
  • Blue, diamond-shaped pills
  • Dosage of 25, 50, or 100 mg
  • Take anywhere from 30 minutes to 4 hours prior to sexual activity
  • 3-4-hour half-life
  • Side effects: headache, nasal congestion, flushing, impaired vision, upset stomach, and indigestion
  • Generic brand available at a much lower cost
  • Can be purchased online without a prescription
  • Oval-shaped, brown tablets
  • Dosage of 5, 10, and 20 mg
  • 17.5-hour half-life (can last up to 36 hours)
  • Take once a day (not more than once every 24 hours), at least 30 minutes to 4 hours prior to sexual activity
  • Side effects: headache, indigestion, nasal congestion, diarrhea, muscle aches, and back pain
  • Nick-named “The Weekend Pill”
  • Will not go into effect until sexual stimulation is experienced
  • Generic brand available at a much lower cost
  • Can be purchased online without a prescription
  • Round, orange tablets
  • Dosage of 2.5, 5, 10, or 20 mg
  • Take 1-2 hours prior to sexual activity
  • Should only be taken on an as-needed basis
  • 4-5-hour half-life
  • Side effects: nausea, headache, flushing, muscle aches
  • Generic brand available at a much lower cost
  • Cannot be purchased online without a prescription

When you compare impotency medications, you’ll find that the differences are not all that widespread. Sildenafil, Tadalafil, and Vardenafil each help with erectile dysfunction, although each have a different length half-life, or the amount of time they will last for, with Tadalafil lasting much longer than the other two. They each inhibit the PDE5, or phosphodiesterase type five inhibitor, but they also inhibit other areas in addition to the PDE5, based upon their mechanism of action. For example, Sildenafil and Vardenafil inhibit the PDE6 more so than Tadalafil, which inhibits the PDE11 more so than the other two medications. What this results in is simply varying side effects, and it causes each medication to work differently, depending on the individual and what works best for him.

This comparison of top ED medications also clearly shows that generic brands are available for each, which can be easily purchased through www.4rx.com. Buying prescription medications online saves you time and money – you visit the website, select the medication you are in need of, place your order, and wait as the product is shipped right to your door. You completely eliminate the step of having to go to the pharmacy to pick up your prescription. In addition, if you are self-conscious or don’t want others to know the type of prescription you are picking up, this is something you no longer have to worry about when you order your prescription online.