29:13 Vitamin C effects all drugs. grapefruit is hyperreactive and can result in stronger effects(may poison you). orange juice amplifies drugs of many kinds over the counter and not and has its own interactions. grapefruit changes the effects and may turn it into a poison but is overall stronger in effect. Synopsis don't mix things if you aren't 100% certain. oxy was mentioned earlier that is why i say this.
Funnily enough, this happened to me on my first Chris playthrough a few days ago. I bet the game twice at that point with Jill and was going for the beat the game with Chris's achievements on V. Easy and he just smacks it away!