Zhewitra 10 mg is generally intended for adult men aged 18 and older, but age, health conditions and other medicines can affect whether it is suitable. Zhewitra is commonly marketed as containing vardenafil, which treats erectile dysfunction (ED) by increasing blood flow to the penis during sexual stimulation. Check the packaging to confirm the active ingredient. Age-related considerations Under 18: Not recommended for erectile dysfunction. 18–49 years: May be suitable if medically appropriate. 50–64 years: Age alone is not a restriction, Zhewitra 10 mg cardiovascular health and other medicines should be considered. 65 years and older: A doctor should assess individual health and medication interactions before use. Important safety precautions Never take it with nitrate medicines for chest pain, as this can cause a dangerous drop in blood pressure. Do not combine it with other ED medicines, such as sildenafil (Manforce) or tadalafil (Tazzle), unless a doctor specifically directs you. The usual maximum recommended vardenafil dose is 20 mg within 24 hours. Products sold as 40 mg should not be assumed safe. May I ask how old the man is who would be taking Zhewitra 10 mg? I can explain the age-specific precautions more accurately.