Release patterns

Question 1

concerta

Answer 1

osmotic pump, small amount released in AM and then gradual release over 10-12 hour

Question 2

focalin

Answer 2

d isomer only, possibly longer acting than dl combo

Question 3

focalin XR

Answer 3

immediate release and then delayed release beads, 10-12 hours in lab testing

Question 4

ritalin

Answer 4

immediate release d/l, lasts about 4 hr

Question 5

Ritalin LA

Answer 5

immediate release and then delayed release beads, 8 hour action

Question 6

daytrana

Answer 6

d/l; If patch worn 9 hr has 10-12 hr action (direct absorption into skin transdermally)

Question 7

metadate

Answer 7

d/l, 30% immediate release, 70% release later in day, 8 hour action

Question 8

adderall

Answer 8

75% d-amp, 25% l-amp, approx. 6 hour action

Question 9

Adderall xr

Answer 9

immediate and long release beads, approx. 10-12 hour

Question 10

dexedrine

Answer 10

approx. 6 hour duration

Question 11

Dexedrine spansule

Answer 11

older technology, 8-10 hour action

Question 12

vyvanse

Answer 12

lisdexamfetamine –> dextroamp and l lysine, 10-12 hour action