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A 20-year-old male asked:

how long does cialis take to come into effect and would it be better suited for me to take it then viagra (sildenafil)?

1 doctor answer8 doctors weighed in
Dr. Fletcher Derrick
Urology 63 years experience
Both about 1-2 hrs: Viagra, Cialis, Levitra (vardenafil) etc all reach best levels in 1-2 hours . They break down at different speeds. However I am interested as to why you need either at age 20?
Dr. Johnny Roy
Dr. Johnny Roy commented
Urology 59 years experience
Agree with Dr Fletcher,an acquaintance of mine yrs ago...the three drugs are similar in action,the only difference Cialis can stay in your system for 3-days....meaning you can perform for 3 days by taking one pill.......................
Jun 13, 2015

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Similar questions

A 30-year-old member asked:

How do you get a prescription for viagra (sildenafil) or cialis? Which is better?

1 doctor answer4 doctors weighed in
Dr. Richard Sarle
Urology 22 years experience
Ed drugs: While both drugs are similar, cali's has a longer half life and some feel that is an advantage. Both drug companies have generous sample programs for these costly meds....My advice is to be seen by your doc for ED and try each one....Then choose the one you prefer....But if you're ED is a new problem then see your doc first....Stop smoking and loose weight are better than meds for ED for many pts.
A 41-year-old member asked:

Viagra (sildenafil) or cialis.. Which has less side effects?

1 doctor answer4 doctors weighed in
Dr. George Klauber
Specializes in Pediatric Urology
About the same: Both medications have a very similar molecular structure as well as action, so side effects are similar.
A 36-year-old member asked:

Viagra-cialis side effects?

1 doctor answer1 doctor weighed in
Dr. Howard Usitalo
Urology 40 years experience
PD5 side effects: Typically stuffy nose, flushing, back pain(cialis), blue vision (viagra)are most common.
A 47-year-old member asked:

How can I tell if my boyfriend uses Cialis or viagra (sildenafil) medications?

1 doctor answer2 doctors weighed in
Dr. Ravi Chauhan
Urology 22 years experience
No way to tell: Honest discussion is probably the best method.
Thailand
A 68-year-old male asked:

Can i take viagra (sildenafil) or Cialis with concor 5mg?

1 doctor answer1 doctor weighed in
Dr. Robert Bennett
Urology 30 years experience
CONCOR: Concor is a beta blocker and is not alone, contraindicated with viagra (sildenafil) or other similar medications, nitroglycerine in any form is contraindicated along with a certain class prostate medications.

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Last updated Jun 13, 2015
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