if i were you id take 30 pills (i and a half bottles), but to at least get the feel id do an entire bottle of 20. im pretty sure the gels have 15mg., so 15mg x 20 pills= 300mg. which is a pretty light trip.

or you could just drink a bottle of tussin max strenght cough, it tastes gross but it has more dxm in it than the gel pills, a 4oz.(354mg) youll trip good, a 8oz(708mg) and youll trip fuckn balls. So if you wanna save money and get more dxm for your buck id say drink the syrup and just deal with the nausea, its not that bad.