SSRI antidepressants are really really good treatments for PE. Sometimes too good -- with the standard dosage for Zoloft, I can't ejaculate at all -- so you would have to find the exact dose that works best for you. You can take these meds daily, but you might find that a single pill works for you (although it could take 4-8 hours to begin working), letting you take it based on your evening plans. There is a short-acting SSRI that can be taken just like viagra, but it is not yet approved by the FDA.
I don't doubt the role of norepinephrine. The antidepressants that act the most strongly on norepinephrine are the least likely to delay or prevent ejaculation. Of course, SSRI's have no effect on norepinephrine, which probably explains why they are such great treatments for PE.
Most urologists will know about all this. Here's some reading on the subject:https://www.auanet.org/education/guidelines/premature-ejaculation.cfm
There are also topical anesthetics that can be used (including condoms impregnated with them), but I would want to know if there is any potential for them to effect my partner.