Q: I am a 71-year-old man with a physically active lifestyle, and I have a strong passion to control my A1C and cholesterol levels by eating the right kind of food. I am taking metformin, atorvastatin and losartan to assist in controlling my blood sugar, cholesterol and blood pressure. After turning 70, I was having difficulty being intimate with my wife.
I requested my internal medicine doctor (a friend) to prescribe sildenafil, but he ignored the request. So, I turned to an online pharmacy. After answering a few questions, they dispensed 20-mg tablets.
I determined that I needed 40 mg to assist me, and it has been working very well. I only take 40 mg of sildenafil once a week. I do not have any side effects from any medications that I take.
My question: Is there any consequences with taking this medication? As I get older, do I have to increase the dosage? – D.M. A: Sildenafil (Viagra when used for erectile dysfunction and Revatio when used for pulmonary hypertension) works by changing the blood flow to certain blood vessels by blocking an enzyme called phosphodiesterase 5.
In the penis, this opens up the blood flow going into the penis and constricts the blood flow going away from the penis. Sildenafil is generally safe, but like any drug, it has the potential for side effects. Vision and hearing changes are well-known but uncommon side effects of sildenafil; they are almost always reversible.
Sildenafil cannot be taken by people using any form of nitroglycerine, such as.