I take  both of those meds, along with a few others, and I have no problem ejaculating.  I am about 12 years younger than you are.

By all means see the doctor.

...that said, I'm asking anyway.  I returned to this game last month and have seen four different providers (one of them twice).  All were beautiful, hot and really nice.  But I haven't been able to come with any of them.  Not even close.  Since I'm nearly 65, age could be a factor, though I doubt it.  I think it's probably nerves.  However, I am also on several medications and wonder if it could be that.  One is generic Zocor; the second is lisinopril for high blood pressure; and more recently I've been on an anti-biotic.  I am in the process of making an appointment with a urologist but, in the meantime, wondered if anyone has an informed opinion on whether any of these meds could be the problem.

these drugs are known to depress the sensitivity of our little man.   I (60+) take generic paxil and it definitely has that effect on me.  I've managed to reduce the dose to a level where endings are happy.  I have a good friend who is on similar meds and they definitely interfere with his sex life.

None of the meds that you take cause that effect. Only SSRIs( Anti-Depressants ) are known to cause delayed ejaculation. Infact people get placed on SSRIs for premature ejaculation. It could be the nerves .Stess plays a big role. Some urologists claim( from their clinical exp) that Statins( Zocor and similar meds) cause erectile issues in men. However this has not been supported by literature.

I'm aware of that but I do not take anti-depressants, only generic Zocor, lisinopril for high blood pressure and a smorgasbord of vitamins and anti-oxidants.

Agreed.  Also, the oral medication for hair loss (I forget the name, but I tried it years ago instead of Rogaine) suppresses ejaculation.  But I don't take that either.