hi. i don't know about cardio stuff. a while back, there was a huge to do in the media about people dying from legally prescribed stimulants within the normal dosage range. then...well...i guess everyone shrugged it off, because stimulants are more widely prescribed now than they were back then.

i guess just try to keep your dosage as low as possible. stimulants are relatively safe, but pscyh effects and other adverse effects do pop up, now and then.

an AM tablet of dexedrine or maybe adderall would work more quickly. the adderall would probably produce more jitters, but it also lasts a bit longer than dexedrine.

combining stimulants with tranquilizers might increase the TD risk, according to a former shrink. i don't know if that's based on actual research, but it does make sense, intuitively. then again...shrinks are known for just kind of making stuff up, so there's that, too.

i guess work with the prescriber, 'start low, go slow,' watch for problems. good luck.