Methylphenidate (MPH) is available in 2 different isomer formulations. It is essential to know which formulation you are dealing with when converting from one stimulant to another. Those conversions are less precise if the new medication has a different formulation of isomers than the old one.
METHYLPHENIDATE | DURATION (HRS) |
Ritalin, Methylin | 3-5 |
Ritalin SR, Methylin ER,Metadate ER | 4-8 |
Ritalin LA | 6-9 |
QuilliChew ER | 8 |
Metadate CD | 8-10 |
Jornay PM | 8-11 |
Concerta, Aptensio XR,Quillivant XR, Daytrana, Cotempla XR-ODT | 12 |
Adhansia XR | 16 |
Dexmethylphenidate (Focalin) | 3-5 |
Dexmethylphenidate XR (Focalin XR) | 8-12 |
such as orally disentegrating ODTs (Adzenys, Cotempla), transdermal Daytrana, or delayed-release Jornay PM
Cotempla ODT-XR | Jornay PM | Adzenys ODT |
Methylphenidate x0.86 | Methylphenidate x 1.35 | Adderall x 0.63 |
Concerta | Ritalin LA or Metadate CD | Daytrana |
---|---|---|
18 mg/day | 10-20 mg/d | 10 mg/9 hr wear time |
27 mg/day | 30 mg/day | 15 mg/9 hr wear time |
36 mg/day | 40 mg/day | 20 mg/9 hr wear time |
54 mg/day | 50 mg/day | 30 mg/9 hr wear time |
Medikinet® retard and Concerta® are two MPH preparations with different release profiles and proved efficacy on ADHD symptoms as well as co-morbid conditions.
Medikinet
Concerta
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