Medical Advice

Phentermine vs Adderall (For ADHD and Weight loss Treatment)

Phentermine vs Adderall

Nowadays, disorders are common among adults and children. Most people experience different disorders including ADHD, along with weight loss. ADHD affects millions of adults in their daily life which can make it difficult for them to keep everything in the right place. On the other hand, losing weight due to various reasons is common as well. People this time want a healthy life with an average weight. Because being overweight may lead to various health conditions. To solve these problems doctors may prescribe Phentermine and Adderall to the patients. This blog gives you a Phentermine vs Adderall comparison from which an individual gets an idea about both drugs and can choose the better one for them.

Brief Description of Phentermine Medicine:

Phentermine is mainly used in the treatment of obesity in individuals. This drug is classified as a Schedule III drug. It acts as a Central Nervous Stimulant (CNS), which stimulates nerves and the brain to decrease appetite in a person. This medication drug contains several inactive ingredients such as gelatin, D&C Red # 33, magnesium stearate, corn starch, lactose monohydrate, titanium dioxide, and FD&C Blue # 1.

Brief Description of Adderall Medicine:

People use Adderall medicine when they are suffering from Attention Deficit Hyperactivity Disorder (ADHD) and narcolepsy. It is a controlled substance that is classified as a Schedule IV drug.

The main purpose of this medication drug is to control impulsivity and hyperactivity in individuals, which helps them to stay focused on their work. It also provides a better sleep at night. The inactive ingredients of this drug are sugar spheres, kosher gelatin, triethyl citrate, titanium dioxide, talc, edible inks, hydroxypropyl methylcellulose, and so on.

Comparison Between Phentermine vs Adderall Medicines:

Phentermine and Adderall drugs are compared in six different methods. These include the following:

FDA approval

Both Phentermine and Adderall drugs are approved by the Food and Drug Administration (FDA) on different dates. Read the following FDA approval date of these medicines:

Phentermine medicine was approved by the Food and Drug Administration (FDA) on 14th August 1973.

The Food and Drug Administration (FDA) approved Adderall medicine on 19th January 1960.

Brand names

The brand names that are commonly used in Phentermine medicine are Lomaira, Pro-Fast, Lonamin, Pro-fast, Atti-Plex P, Adipex-P, Phentercot, Phentride and Adipex. Adderall is a branded drug that contains Amphetamine and Dextroamphetamine as the two active ingredients.

Dosages: Phentermine vs Adderall

Both these drugs have similar forms of dosages but different dosage strengths. Read the following dosage forms and strengths of Adderall and Phentermine drugs:

Phentermine Medicine

Phentermine medicine is available in the form of oral capsules and tablets. This drug is useful in the treatment of obesity or overweight.

The common dosage strengths of oral capsules and tablets are-

People can take the usual dose of oral capsule of this drug for the treatment of obesity.

Adderall Medicine

Adderall medicine is used to treat the symptoms of ADHD and narcolepsy in individuals. The forms of this drug are extended-release oral capsules and immediate-release oral tablets.

Adderall medicine consists of different dosage strengths for the treatment of ADHD and narcolepsy. The dosage strengths of immediate-release oral capsules are

The dosage strengths of extended-release oral tablets are-

Children between 3 and 5 years of age can take the starting dose of 2.5 mg. Healthcare providers can increase this dosage for the treatment of ADHD and narcolepsy.

Adults and children above 6 years of age can start the Adderall treatment with a 5 mg dose one or two times a day. They are not suggested to take more than 40 mg in 24 hours.

The half-life of Adderall and Phentermine Medicine:

When a person takes this medicine for the treatment of obesity, the half-life of this medication drug is 20 hours

Adderall medicine has a half-life of 34 hours in an individual’s body.

Drug Interactions:

Both drugs can interact with different medicinal drugs. Read the following drug interactions of Phentermine and Adderall drugs:

Phentermine Medicine

Phentermine medicine can interact with different medicinal drugs. These include Dexmethylphenidate Hydrochloride, Atomoxetine Hydrochloride, Calcium Carbonate, Cocaine, Chlorpheniramine, Dihydroxyaluminum Aminoacetate, Doxepin, Frovatriptan, Formoterol Fumarate, Fluvoxamine and others.

Adderall Medicine

There are different medicinal drugs that can interact with Adderall medicine. Some of them are Lisdexamfetamine Dimesylate, Isoproterenol Hydrochloride, Midodrine Hydrochloride, Morphine Sulfate Liposome, Oxymetazoline Hydrochloride, Palonosetron, Polythiazide, Pseudoephedrine Hydrochloride etc.

Side effects:

Side effects of Adderall or Phentermine medicine occur due to overdose or improper use of these drugs, which can be common or severe in patients. Read the following side effects of these medicines:

Phentermine Medicine

There are different side effects of Phentermine medicine. These are as follows:

  • Swelling in feet or lower legs
  • Bad or unpleasant taste
  • Dryness in mouth
  • Skin rashes, itching, hives or welts
  • Inability to maintain erection
  • Dizziness, light-headedness or fainting
  • Drowsiness
  • Breathing problems
  • Chest pain
  • Fast or irregular heartbeat
  • Diarrhea
  • Pain in neck, arms, jaws, or back
  • Heart palpitations
  • Numbness or pain in fingers and toes
  • Constipation
  • Sexual problem

Adderall Medicine

Adderall medicine causes different side effects in individuals. These include the following:

  • Sweating
  • Seizures (convulsions)
  • Fear or nervousness
  • Nausea and vomiting
  • Muscle spasms, stiffness or pain
  • Blurred vision
  • Redness or irritation in eyes
  • Weakness in arms and legs
  • Headache
  • Fever
  • Agitation (severe anxiety)
  • Hallucinations
  • Panic attack
  • Swelling in throat, lips, face, or tongue
  • Change in mood or behavior
  • Sleeping problems
  • Tremors
  • Paranoia

Precautions for Phentermine and Adderall Medicine:

  • Avoid eating grapefruit or drinking grapefruit juice after taking these medicines.
  • After taking any of these drugs will be dangerous for an individual if they Driving a car or performing any heavy work. So, avoid driving
  • Before taking these drugs, It is important for a person to consult with a health expert.
  • If a person is suffering from allergy, kidney or liver disease, glaucoma, asthma, breathing problems, etc then he or she cannot take these drugs. An individual must contact the doctor immediately if suffering from these health problems.
  • Alcohol consumption or smoking cigarettes will become harmful for a person after taking Adderall or Phentermine medicine. Therefore, people have to avoid alcohol.
    at the time of pregnancy and breastfeeding, women are not suggested to take these medication drugs.


In this blog, we tried to provide all the information related to Phentermine vs Adderall medications. Phentermine medications help to reduce weight and Adderall is used to treat Attention Deficit Hyperactivity Disorder in people. During these drug treatments, one must follow precautions to decrease the chance of side effects.

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