A 17-year-old male asked:
Disclaimer

i have adhd and i take adderall 5mg and it has no effect i recently got prescriped 20mg of vyvanse (lisdexamfetamine) and it only works for 3 hours why is this hapenning?

2 doctor answers
Dr. James Wells
43 years experience Psychiatry
Dose may be too low: It could be that the dose is too low. Recommend discussing with your doctor a trial of a higher dose.
Answered on Jan 2, 2015
Dr. Carlos Barrios
22 years experience Child Psychiatry
Doses too low: These are minimal dose of each medication and as such these medications will tend to have an effect for only a few hours. Regular adder all is always only going to be short acting. Its good your medication is being titrated slowly to avoid side effects. But speak to your psychiatrist about further adjustments, that is what the solve on this. Take care.
Answered on May 28, 2015
1
1 thank

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
Unlimited visits
$10/month

Related questions:

A 25-year-old male asked:
Dr. John Hagler
80 years experience Geriatrics
Depends: Ok, if prescribed by reputable md who has documented diagnosis. Must be taken strictly as prescribed.
5
5 thanks
A 19-year-old female asked:
Dr. Matthew Davis
18 years experience Child Psychiatry
Make changes...: Chose your stimulant. Don't combine stimulants. Longer acting agents tend to provide better coverage without sudden crashes. Given your need for such ... Read More
1
1 thank
A 23-year-old female asked:
Dr. Alan Ali
Dr. Alan Ali answered
31 years experience Psychiatry
ADHD alternatives: Talk to your doctor about other alternatives such as Concerta, Intuniv, Tenex, (guanfacine) Clonidine, Kapvay, etc.
1
1 thank

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
Unlimited visits
$10/month