Antihistamine comes in gelatin capsules; What should I do?

So my mom bought the caplets of antihistamine instead of the tablets. They were already open so I can't return them, and I don't like consuming gelatin but my allergies get really bad. I have taken to opening them and putting them on bread or something, but it is REALLY bitter and gross. I can't buy new pills until these are gone, and my mom would think buying vegan capsules is gross. Help? Any way to consume it without the gelatin?