what viagra might do to your brain 

Thank you Dr Chan . I am on Viagra due to ED issues. But i am also 64 years old and hopefully this will help because AZ runs in my Family. I enjoy all your videos . I am a Disabled Veteran and currently see a Urologist here in Virginia. God Bless you and will keep watching. 🇺🇸

Dr. Chan: I have been enjoying watching more than 100 of videos which you put out every week in last 2 years. Your videos are always backed up with clinical trials or research papers so they are more trustworthy. Thanks and keep up with the good works!

you already know I'm popping these on the daily now

Good that x2 speed exists

Thank you Dr.Chan for all your video's. I like to ask you if is valid also for taking tadalafil. Thanks.

I just emailed my doctor for a prescription of viagra for 6 months. What if you take nitric oxide daily instead viagra?

Why don’t they prescribe this to stop Alzheimer’s

Mr dr said it could cause blindness?

If you believe this , you can be sold a bridge.

Does viagrahelp after a stroke

Is there any alternative of viagra which is safe for heart and also for eyes.

My daughter is suffering with congenital heart disease. She is using viagra but she has list her one side vision.

I have Got retrogade ejaculation due to prostate surgery..does viagra help with that..? Thx

Very Educative

Causes tinnitus. That's what it does

Can Viagra cause urinary retention?

Sold.

Can you take this if you have glaucoma?

Not good if you have AMD.

Same for cialas ?

LOL, until recently I hadn't realized that Mario updated his favorite way to tackle ED and it's a relief! Although what he previously suggested was pretty good, it was a real pain to follow... I just go'ogled the latest in Volpstein's Erections at Will, it's so much simpler and potent now!

Sunil chetri

69% Nice

THIS IS GREAT, NOW I'LL NEVER FORGET TO TAKE VIAGA AND SCREW..