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Ferndex (Generic Dextroamphetamine)

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The use of dextroamphetamine may lead to addiction. Never exceed the dosage, frequency, or duration of treatment recommended by your doctor. If you consume too much dextroamphetamine, you can continue to feel the need to consume high doses of the drug and might exhibit strange behavioral changes. If you see any of the following symptoms, you should contact your doctor right away. Sweating, dilated pupils, an abnormally ecstatic mood, irritability, restlessness, trouble falling or staying asleep, hostility, aggression, anxiety, loss of appetite, loss of coordination, uncontrollable movement of a part of the body, flushed skin, vomiting, stomach pain; or preparing, attempting, or even just having the thought of hurting or killing oneself or someone else. Dextroamphetamine abuse can result in fatal heart problems or sudden death.

If you take too much dexmethylphenidate, you can continue to feel the need to take a lot of the drug, and your behavior might change in unexpected ways.

Inform your doctor if you or any members of your family regularly use excessive amounts of alcohol, use street drugs, or abuse prescription pharmaceuticals. Most likely, you won’t get a dextroamphetamine prescription from your doctor.

Without first consulting your doctor, do not discontinue taking dextroamphetamine, especially if you have been abusing the drug. Your dose will likely be gradually reduced by your doctor, who will also closely watch you during this period. If you abruptly cease using dextroamphetamine after an excessive amount of use, you might feel depression and intense fatigue.

Avoid sharing, selling, or allowing others to use your medication. Dextroamphetamine is illegal to sell or give away and could be harmful to other people. Dextroamphetamine should be kept in a secure location to prevent accidental or intentional consumption by others. Count the remaining tablets or capsules so you can identify any missing ones.

When you start treatment with dextroamphetamine and every time you get more medication, your doctor or pharmacist will give you the manufacturer’s patient information sheet (Medication Guide). If you have any questions, carefully read the material and contact your doctor or pharmacist. The Medication Guide is also available on the manufacturer’s website or the Food and Drug Administration (FDA) website (

Why is this medication prescribed?

For both adults and children, dextroamphetamine is used as part of a therapy plan to manage the signs and symptoms of attention deficit hyperactivity disorder (ADHD; greater trouble focusing, managing behaviors, and remaining still or quiet than other individuals their age). Narcolepsy, a sleep disorder that results in extreme daytime sleepiness and unexpected sleep attacks, is also treated with dextroamphetamine. The drug dextroamphetamine belongs to the group of drugs known as central nervous system stimulants. It functions by altering the concentrations of specific organic compounds in the brain.

How should this medicine be used?

Extended-release (long-acting) capsules, tablets, and liquid dextroamphetamine are all available for oral administration. Typically, 2 to 3 times a day, with or without food, the tablet is taken. Most people take the extended-release capsule once day, with or without food. Typically, the beverage is consumed once or twice a day, with or without meals. Dextroamphetamine should be taken every day at roughly the same time(s). Take your first dose of dextroamphetamine tablets as soon as you wake up in the morning and space subsequent doses by 4 to 6 hours if you’re taking them. Dextroamphetamine should not be consumed in the evening since it may make it difficult to fall or remain asleep. Ask your doctor or pharmacist to explain any instructions on your prescription label that you do not understand, and carefully follow their instructions. Exactly as prescribed, take dextroamphetamine.

The extended-release capsules should not be chewed or crushed.

Dextroamphetamine dosages are often started at modest levels and then gradually increased, usually no more than once per week, by your doctor.

Periodically, your doctor might advise you to stop taking dextroamphetamine in order to determine whether you still need the drug. Pay close attention to these guidelines.

Other uses for this medicine

It is not recommended to use dextroamphetamine to treat excessive fatigue that is not brought on by narcolepsy.

Ask your doctor or pharmacist for more details if you believe this drug should be used for something else.

What special precautions should I follow?

Before taking dextroamphetamine,

  • If you have an allergy to dextroamphetamine, any other drugs, or any of the chemicals in dextroamphetamine preparations, let your doctor and pharmacist know right away. Request a list of the components from your pharmacist.
  • Inform your doctor if you’re taking any of the following drugs: monoamine oxidase (MAO) inhibitors like isocarboxazid (Marplan), linezolid (Zyvox), methylene blue, phenelzine (Nardil), selegiline (Eldepryl, Emsam, Zelapar), and tranylcypromine (Parnate), or if you’ve recently stopped taking any of them. You should wait at least 14 days after stopping dextroamphetamine before starting an MAO inhibitor.
  • Inform your doctor and pharmacist about all of the vitamins, herbal products, and other prescription and non-prescription medications you are using. Any of the following should be mentioned: alpha blockers such as tamsulosin (Flomax, in Jalyn), alfuzosin (Uroxatral), doxazosin (Cardura), prazosin (Minipress), and terazosin; acetazolamide (Diamox); ammonium chloride, omeprazole (Prilosec), and other heartburn and ulcer treatments, as well as antihistamines (prescription drugs for allergies and colds), beta-blockers such as atenolol (Tenormin), labetalol (Trandate), metoprolol (Lopressor, Toprol XL), nadolol (Corgard), and propranolol (Inderal, InnoPran); ascorbic acid (Vitamin C); medication for high blood pressure; buspirone; chlorpromazine; diuretics (‘water pills’); fentanyl (Actiq, Duragesic, Subsys, and others); guanethidine (Ismelin; no longer available in the United States); haloperidol (Haldol); lithium (Lithobid); almotriptan (Axert), eletriptan (Relpax), frovatriptan (Frova), naratriptan (Amerge), rizatriptan (Maxalt), sumatriptan (Imitrex, in Treximet), and zolmitriptan (Zomig) are among the migraine treatments; meperidine (Demerol), methenamine (Hiprex, Urex), phenobarbital (Dilantin, Phenytek), and ethosuximide (Zarontin) are examples of drugs for seizures; reserpine, quinidine (in Nuedexta), propoxyphene (Darvon, Darvon-N; no longer available in the United States), ritonavir (Norvir, in Kaletra), and quinidine; fluoxetine (Prozac, Sarafem, in Symbyax), fluvoxamine (Luvox), paroxetine (Brisdelle, Prozac, Pexeva), and sertraline (Zoloft) are examples of selective serotonin-reuptake inhibitors; desvenlafaxine (Khedezla, Pristiq), duloxetine (Cymbalta), milnacipran (Savella), and venlafaxine (Effexor) are examples of serotonin and norepinephrine reuptake inhibitors. Sodium bicarbonate (Arm & Hammer Baking Soda, Soda Mint); tricyclic antidepressants, also known as “mood elevators,” such as desipramine (Norpramin) and protriptyline (Vivactil), sodium phosphate, tramadol, and others, Your physician might need to adjust the dosage of your drugs or keep a close eye on you for side effects.
  • Inform your doctor of any nutritional supplements you are taking, such as glutamic acid (L-glutamine), as well as herbal items you are taking, particularly St. John’s wort and tryptophan.
  • Inform your doctor if you have hyperthyroidism (a condition in which your body produces too much thyroid hormone), glaucoma (increased pressure in the eyes that may result in visual loss), or any sensations of anxiety, tension, or agitation. Most likely, your doctor will advise against taking dextroamphetamine.
  • Inform your doctor if anyone in your family has ever experienced a sudden death or has an abnormal heartbeat. A recent heart attack, heart defects, high blood pressure, an irregular heartbeat, heart or blood vessel illness, artery hardening, or any other cardiac issues should also be disclosed to your doctor. Your heart and blood vessels will be checked by your doctor during the examination. If you have a heart condition or there is a significant chance that you will develop a heart condition, your doctor will likely advise against taking dextroamphetamine.
  • Inform your doctor if you or anyone in your family has or has ever had depression, bipolar disorder (a condition characterized by mood swings between depressed and abnormally excited), mania, facial or motor tics, verbal tics, or Tourette’s syndrome (a condition characterized by the need to repeat sounds or words repeatedly), or if you have ever considered or been exposed to any of these conditions. Additionally, let your doctor know if you suffer from or have ever experienced seizures, mental illness, or abnormal electroencephalograms (EEGs), which measure the electrical activity in the brain. Inform your child’s doctor if your child has recently gone through any extraordinary stress if your child is taking dextroamphetamine to treat ADHD.
  • Inform your physician if you are nursing a baby, intend to get pregnant, or are already pregnant. Call your doctor if you become pregnant while taking dextroamphetamine. If you are using dextroamphetamine, avoid breastfeeding.
  • If you are 65 years of age or older, discuss the advantages and disadvantages of dextroamphetamine use with your doctor. Dextroamphetamine is often not recommended for usage by older persons since it is less safe than other drugs that can be used to treat the same illness.
  • Dextroamphetamine can make it challenging for you to accomplish tasks that call for alertness or fine motor coordination. Prior to understanding how this drug affects you, avoid using machinery or driving a car.
  • You should be aware that dextroamphetamine should be taken in conjunction with other therapies, such as counseling and specialized instruction, in order to effectively treat ADHD. Ensure that you adhere to all recommendations from your therapist or doctor.
  • Dextroamphetamine can cause abrupt death in adolescents and teenagers, especially those who already have major heart conditions or deformities. Adults taking this medication, particularly those with major cardiac issues or heart deformities, run the risk of experiencing sudden death, heart attacks, or stroke. If you or your child experiences any symptoms of heart issues while taking this drug, such as chest discomfort, breathlessness, or fainting, call your or your child’s doctor straight once.

What special dietary instructions should I follow?

Keep eating normally unless your doctor instructs you otherwise.

What should I do if I forget a dose?

If you miss a dosage, take it as soon as you recall. If the next dose is soon due, skip the missed one and carry on with your regular dosing plan. To make up for a missing dose, do not take a second one.

What side effects can this medication cause?

Side effects from dextroamphetamine are possible. If any of these symptoms are severe or do not go away, let your doctor know right once:

  • Headache
  • Mouth ache
  • Unfavorable flavor
  • Constipation
  • Slim down
  • Alterations in sex drive or capacity

Some adverse effects can be very harmful. Call your doctor right away if you have any of the following symptoms:

  • Extreme fatigue
  • Slow or challenging speech
  • Dizziness
  • An arm or leg that is weak or numb
  • Seizures
  • Mood shifts
  • Assuming falsehoods to be true
  • Feeling unusually wary about other people
  • Agitation, hallucinations (hearing voices or seeing things that are not there), disorientation, fever, sweating, shivering, extremely stiff or twitching muscles, loss of coordination, nausea, vomiting, or diarrhea
  • Hallucinations (seeing or hearing things or sounds that are not there)
  • Unusual motions
  • Speech tics
  • Eyesight alterations or blurry vision
  • Hives
  • The fingers or toes are pale or have a bluish tint
  • Hands or feet tingling, burning, or pain
  • Unidentified cuts on the fingers or toes

Dextroamphetamine poses a risk for sudden mortality in adolescents and teenagers, particularly those with significant heart conditions or congenital heart defects. Adults who already have major cardiac issues or heart defects may also experience sudden death, heart attacks, or stroke as a result of this medicine. If you or your child has chest pain, breathlessness, or fainting while taking this medication, contact your doctor straight away. The dangers of using this drug should be discussed with your doctor.

The growth or weight gain of youngsters may be slowed by dextroamphetamine. The physician for your child will keep a close eye on their development. If you are worried about your child’s weight gain or growth while taking this medicine, talk to your child’s doctor. Consult your child’s doctor about the dangers of giving them dextroamphetamine.

Other negative effects of dextroamphetamine are possible. If you experience any strange issues while taking this medicine, contact your doctor right away.

You or your doctor can submit a report to the Food and Drug Administration’s (FDA) MedWatch Adverse Event Reporting program online at or by phone at 1-800-332-1088 if you have a serious side event.

What should I know about storage and disposal of this medication?

Keep this medication tightly closed in the original container and out of the reach of children. Keep it at room temperature and out of the bathroom and other places with excessive heat and moisture.

As many containers (such as weekly pill minders and those for eye drops, creams, patches, and inhalers) are not child-resistant and are simple for young children to open, it is crucial to keep all medications out of sight and out of reach of children. Always lock safety caps and promptly stash medication up and away from young children where it is out of their sight and reach to prevent poisoning.

Unused prescriptions must be disposed of carefully to prevent pets, kids, and other people from ingesting them. You should not, however, dispose of this medication in the toilet. Instead, utilizing a medicine take-back program is the best way to get rid of your medication. To find out about take-back programs in your area, speak with your pharmacist or the garbage/recycling department in your city. If you do not have access to a take-back program, see the FDA’s Safe Disposal of Medicines website at for additional information.

In case of emergency/overdose

Call the poison control hotline at 1-800-222-1222 in the event of an overdose. Additionally, information can be found online at Call 911 right once if the person has collapsed, experienced a seizure, is having difficulty breathing, or cannot be roused.

Symptoms of overdose may include the following:

  • Restlessness
  • Uncontrolled trembling in a bodily component
  • Urine with a cola or dark red hue
  • Muscular ache or weakness
  • Weakness or exhaustion
  • Rapid respiration
  • Fever
  • Confusion
  • Aggressive conduct
  • Hallucinations (seeing or hearing things or sounds that are not there)
  • Panic
  • Depression
  • Unsteady heartbeat
  • Dizziness
  • Fainting
  • Fuzzy vision
  • Uneasy stomach
  • Vomiting
  • Diarrhea
  • Stomach pain
  • Seizures
  • Coma (a temporary loss of consciousness)

What other information should I know?

Keep all of your doctor’s appointments.

Inform the lab staff and your doctor that you are taking dextroamphetamine prior to any laboratory test.

This medication cannot be renewed. In order to avoid running out of medication, be sure to make routine doctor’s appointments.

You should keep a written record of every medication you take, including any over-the-counter (OTC) items, prescription drugs, and dietary supplements like vitamins and minerals. This list should be brought with you whenever you see a doctor or are admitted to the hospital. You should always have this information with you in case of emergencies.

Brand names

  • Dexampex®
  • Dexedrine®
  • DextroStat®
  • Ferndex®
  • LiquADD®
  • ProCentra®
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