I know that dihydrocodeine is around twice as potent as codeine. I had to take codeine one time and one time i took about 5 and was pretty high. i think they each had 10 mg. So, id say take 2 of the tabs if you want it to be really intense but only 1 if you dont know what its like.

Also erowid reccommends a starting dosage of 30-60mg of codeine which would be 15-30 mg of ur stuff, and that if you feel comfortable you cna take more. so 1 or 2 is plenty.