Common Side Effects

Most common side effects are:

Side Effect Frequency Tips to Deal With:
Headaches 16%-28% vs 7% for placebo          Headaches
Facial Flushing 10%-19% vs 2% for placebo           Flushing
Heart Burn 3%-17% vs 2% for placebo          Heartburn
Muscle Aches 3%-4% vs 2% for placebo                Muscle Aches
Dizziness  3%-4% vs 2% for placebo  
Nasal Congestion  4% vs 2% for placebo  

Less common side effects include:

  • Rash
  • Abnormal vision (blue tint, blurry vision light sensitivity).

The side effects typically last for the duration that the medicine is in the system. Therefore, side effects will last shorter for Viagra, Levitra, and sildenafil and longer for Cialis.

Note: this list is not exhaustive. 

This information is not, nor is it intended to be, a substitute for professional medical advice, diagnosis, or treatment, and should never be relied upon for specific medical advice. If you have any questions or concerns, please talk to your doctor.


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