Placebo (from Latin: "I shall please") is the generic name. Brand name was "Cebocap". Fancy looking capsuiles, one side blue, the other side clear, with lots of little dots inside. Active ingredients, per the manufacturer, were sugar and starch.

I had a patient taking those once, back when I was an intern. Doctor had told her it was a narcotic, and she not only had relief of her pain from them, she didn't even have withdrawal symptoms after taking massive amounts of Vicodin for long enough to have been well and truly hooked. We had to be very careful what we said to this patient. That kinda thing would never fly today when you can look things up instantly on your phone, but back in the 90s you could get away with more.