Whoopi Goldberg uses weight-loss drug Mounjaro after first taking it when she hit almost 300lbs in late 2021. ‘The Color Purple’ actress, 68, piled on the pounds when she started filming the movie ‘Till’ in September 2021 while she was on steroids, and admitted she has also fought her yo-yo’ing figure over the years. She said on ‘The View’: “I will tell you, I weighed almost 300lbs when I made ‘Till,’ and I had taken all those steroids, I was on all this stuff, and one of the things that’s helped me drop the weight is the Mounjaro –– that’s what I use. “I just always felt like me, and then I s…