The differences between udinafil and sildenafil are the order of research and development, speed of onset of action, duration of action, adverse effects, contraindications and so on.
1. Development sequence: Sildenafil is a first-generation oral phosphodiesterase 5 inhibitor, and udinafil is a new fifth-generation oral anti-phosphodiesterase 5 inhibitor.
2. Speed of onset of action: Although both Udenafil and Sildenafil are both drugs used in the treatment of male erectile dysfunction, and their mechanism of action is also a selective inhibitor of phosphodiesterase (PDE) V; however, Sildenafil has an onset of action in 30-60 minutes after taking the drug, while Udenafil only takes 30-45 minutes to have an onset of action.
3. Efficacy time: Sildenafil has a half-life of about 3-5 hours, while Udenafil has an efficacy of up to 8-12 hours, which is characterized by fast onset of action, mildness, and suitability for diabetic patients.
4. Adverse reactions: Sildenafil may cause facial edema, shock, fatigue, abdominal pain, chest pain, angina, tachycardia, vomiting, diarrhea, abnormal ejaculation, etc.; Udenafil adverse reactions are not clear.
5. Contraindications: sildenafil, prohibited during the administration of nitrate drugs, prohibited for those who are allergic to the ingredients, cardiovascular disease, potentially dangerous, cardiac patients, use with caution; udinafil contraindications are not clear.
When there is erectile dysfunction should promptly go to the regular hospital to consult a clear cause of the disease, under the guidance and advice of a specialist doctor to use drugs, it is not recommended to choose their own medication to avoid adverse reactions.