In florida to my understanding 35 pills is less than 1 dose. In florida it is a class a misdemeanor. If it is a first offense he will most likely get a pretrial diversion wherein he would have to do community service and complete a drug offenders program.
If no pretrial diversion is reached and the case goes to trial, 1 year probation + a fine not to exceed $1000 will be imposed.
Depending on the traffic in the DA's office and the mood of the DA when he reviews the case, charges might not even be filed. Also depending on the facts surrounding the arrest. When it comes down to it, the DA wants to make money. It isn't worth the time and money to take put your friend in jail or really even prosecute the case. They'd rather get the money off of a fine.
Also, you gotta wait until the results come back on what was confiscated. A friend of mine got busted with a bottle of t-50. The test came back that there was no active ingredient and the charges weren't even filed.
I wouldn't worry. Even if your buddy got jail time, for that amount is around 15 days in jail. Not a big deal.