Medical Specialty >> Urology

Doctors Lounge - Urology Answers

Back to Urology Answers List

If you think you may have a medical emergency, call your doctor or 911 immediately. Doctors Lounge ( does not recommend or endorse any specific tests, physicians, products, procedures, opinions, or other information that may be mentioned on the Site.

DISCLAIMER: The information provided on is designed to support, not replace, the relationship that exists between a patient/site visitor and his/her physician. Please read our 'Terms and Conditions of Use' carefully before using this site.

Date of last update: 8/13/2017.

Forum Name: Urology Topics

Question: 50 mg of Viagra doesn't work

 xtcombo - Fri Jan 09, 2009 3:18 pm

I was given 50mg samples of Viagra by my primary care doctor. I have tried two different times without maintaining an erection. I have read that a person can take up to 100mg. Would it be permissible for me to take two tablets.
 John Kenyon, CNA - Mon Feb 23, 2009 10:39 pm

User avatar Hello --

While 100 mg is an acceptable dose in the general population and probably would be fine for you (I suspect fluoxetine and possibly Nortriptyline may be working against it), I'm compelled to tell you to let your doctor know about the problem and have him give you the green light to take two, which I feel relatively certain he'd have no problem doing. We're just not in a postion, here, to give permission to change the dose of a prescription drug for an individual, even though it might be perfectly fine in theory.

Do that, ask your doctor, make that phone call, and I'm sure you'll get the OK. It's certainly within the usual dosing range and given the other things you're taking, it would probably be just what you need to get the desired result.

Good luck to you and please keep us updated.

| Check a doctor's response to similar questions

Are you a Doctor, Pharmacist, PA or a Nurse?

Join the Doctors Lounge online medical community

  • Editorial activities: Publish, peer review, edit online articles.

  • Ask a Doctor Teams: Respond to patient questions and discuss challenging presentations with other members.

Doctors Lounge Membership Application

Tools & Services: Follow DoctorsLounge on Twitter Follow us on Twitter | RSS News | Newsletter | Contact us