Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Cialis vs. Stendra: Comparison
Medically reviewed by Min Clinic Staff | Updated: January 2026
- Are Cialis and Stendra the Same Thing?
- What Are Possible Side Effects of Cialis?
- What Are Possible Side Effects of Stendra?
- What Is Cialis?
- What Is Stendra?
- What Drugs Interact with Cialis?
- What Drugs Interact with Stendra?
- How Should Cialis Be Taken?
- How Should Stendra Be Taken?
Are Cialis and Stendra the Same Thing?
Cialis (tadalafil) and Stendra (avanafil) are phosphodiesterase inhibitors used to treat impotence (erectile dysfunction, or ED).
What Are Possible Side Effects of Cialis?
Common side effects of Cialis include:
- flushing (redness or warmth of the face, neck, or chest),
- headaches,
- stomach upset,
- diarrhea,
- flu-like symptoms (such as stuffy nose, sneezing, or sore throat),
- memory problems,
- muscle or back pain,
- nausea,
- low blood pressure,
- dizziness,
- blurred vision and changes in color vision,
- abnormal ejaculation, and
- prolonged erections (priapism).
What Are Possible Side Effects of Stendra?
Common side effects of Stendra include:
- headache,
- dizziness,
- flushing (redness or warmth in your face, neck, or chest),
- cold symptoms (stuffy nose, runny nose, sinus pain, sore throat),
- diarrhea,
- constipation,
- stomach upset,
- back pain,
- upper respiratory tract infection,
- influenza,
- bronchitis,
- joint pain, or