Anyone had coughing after taking Triamterene / HCTZ made by Watson?

You could be allergic / sensitive to an excipient in the Watson version.
Have a chat with your doctor or pharmacist. They may suggest to stop taking it for a few days to see if your cough goes away. If it does you may well be allergic to the Watson generic version.

Yeah, I take the Watson triamterene and have developed a horrible, chronic cough. I never smoked and don't ever go in smokey environments. There's no evidence of infection and my doctor tried antibiotics that did nothing. The only med I take is the triamterene. I was on morphine and oxycodone for back pain, but weaned myself off those 9 months ago. Strangely, the cough began as I came off the pain meds and worsened as I reduced the dosage week by week. Now this cough won't go away and I am thinking it could be drug related.