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what is the right dose of adderall for adhdAdderall is a central nervous system stimulant used for treating ADHD and narcolepsy. The medication majorly comprises of amphetamine and dextroamphetamine salts. It is a combination of the above stated two salts. This drug stimulates the nervous system for the reducing the hyperactivity and impulsivity.

Adult dosage limit

Adderall can be easily bought from online prescription drug stores. However, it is not easy to identify the right dose. First of all, it is important to follow the dosage instructions as highlighted in the doctor’s prescription.

The usual dose for ADHD is 20mg per day. Initially, extended-release capsules are used and later on it can be changed, if needed. Even if you were taking a higher dose of another ADHD medicine and now intending to take Adderall, stick on to this dosage recommendation.

Pediatric dosage limit

For children less than three years, this drug should not be given. For those between three to five years, 2.5mg should be given immediately after waking up. If needed, the daily dose can be increased by 2.5mg every week, till it reaches 40mg per day. It should be divided into three or two doses per day and the minimum interval between two doses should be 4 to 6 hours. The first dose should be given immediately after waking up and the rest of the dose can be given at 4-6 hours interval.

For children above the age of 6, the initial dose is 5mg administered once or twice. The first dose should be given immediately after waking up. The dose can be increased at a rate of 5 mg per week till 40mg per day is reached. It can be broken into two or three doses and there should be a minimum gap of 4 hours between two doses

In the case of using extended-release capsules, the maximum dose is 30 mg per day for children between 6 and 12 years and, for children between 13 and 17 years, the maximum dose is 20mg per day. Extended release capsules should not be given to children less than 6 years of age. For children between 13 and 17 years, the initial dose is 10mg upon awakening and can be increased to 20mg, if needed after a week.


Adderall overdose can be fatal too. Thus, if overdosed, seek emergency medical help or call local poison help line. Symptoms of overdose are;

  1. Restlessness, panic, confusion and hallucination
  2. Tremor, muscle twitching and muscle pain or weakness
  3. Aggressiveness and rapid breathing
  4. Dark urine
  5. Depression and tiredness
  6. Nausea, vomiting, diarrhea and stomach pain.
  7. Rare cases of seizure and coma
  8. Lightheadedness and fainting
  9. Uneven heartbeats

Using other ADHD drugs along with Adderall can also cause an overdose. Other drugs that should not be taken with Adderall are blood pressure medications, mental illness medications, pain relief medications, seizure medicines, lithium based medicines, cold syrup, allergy drugs, a blood thinner, antidepressants, and antacid.


Do not stop Adderall immediately just because the symptoms have improved. The drug should be taken for the whole course as mentioned by your doctor. Adderall should not be used for more than the time indicated. Any recurrence of behavioral symptoms does not mean that you need to start the medicine again, without doctor’s consent. Maintenance therapy with reduced dose will be prescribed by your doctor.

The above-stated information is very generic. The dose can change based on your age, medical condition, medical history, drugs undertaken, weight and many others. The dose information given above is for ADHD only. Other medical conditions like Narcolepsy requires 5mg to 60mg per day, which should be divided into smaller doses based on individual’s response level. For children, 10mg should be given daily. For other dose-related information, get in touch with your doctor.