Phentermine for Weight Loss

All you Need to Know about Phentermine for Weight Loss and More

What is Phentermine for Weight Loss, and how it functions?

Phentermine is a well-known prescription medication/drug utilized along with an exercise approved by a doctor, shifts in behavior, and a reduced-calorie diet regime for weight loss. Phentermine for weight loss is commonly found as an oral capsule or an oral tablet. It is also seen as an orally disintegrating tablet.

Phentermine belongs to a class of drugs called sympathomimetic amines. Phentermine oral capsule is accessible as a brand-name drug and as a generic drug. The brand name for Phentermine to lose weight includes Adipex-P and Lomaira.

Phentermine oral capsules are used in the treatment of obesity. it is the medication undertaken by the abundant overweight population who has medical problems relating to weight issues or those who are obese.

Phentermine to lose weight helps in the reduction of multiple risks, including obesity, high blood pressure, high cholesterol, diabetes, heart disease, and hence increases life expectancy.

It is a medication that functions as an appetite suppressant. Phentermine operates by suppressing the appetite and boosting the body’s energy or by processing the brain to do it.

What are dosages of Phentermine for Weight Loss?

Dosages of Phentermine are different for different age groups. Dosages for adults to be given are as follow:

Capsule, HCl salt: Schedule IV

  • 15mg (Generics)
  • 30mg (Generics)
  • 5mg (Adipex-P, Generics)

Tablet, HCl salt: Schedule IV

  • 8mg (Lomaira)
  • 5mg (Adipex-P, Generics)

Uses of Phentermine for Weight Loss

Like other drugs for weight loss, Phentermine is aimed to use as a medication to resist the urge of appetite, thus making it effective to use as a weight loss plan. It is mainly recommended to people with obesity that has been in vain in controlling their weight with diet and exercise alone, or calorie reduction was not sufficient enough. It is not recommended to people who are just willing to lose just a few pounds.

Furthermore, the dosage, drug type, and how often to take Phentermine for weight loss rely upon age, condition of treatment, the severity of obesity, other patient medical conditions, and how a person reacts to the first dose of Phentermine.

What are the cautions to undertake?

The use of Phentermine for weight loss should be discontinued if no weight loss has occurred within the four weeks of medication. It is not authorized for long-term use.

Furthermore, Phentermine use should also be ceased in case of tolerance development. It is recommended not to increase more than the prescribed dosage in order to overcome tolerance.

The phentermine medication should not be undertaken in case the person is allergic to any ingredients contained in the drug. It should be kept out of reach of children.

Medical help must be sought immediately in case of any misfortune. Patients with hypertension and valvular disease must be very cautious and consult their doctor regularly. Patients with heartbeat issues must avoid stimulants.

People with diabetes must be cautious as certain dietary restrictions can affect the treatment.  It can further cause certain allergic reactions, difficulty in breathing, swelling of the throat.

It can result in restlessness, anxiety, and resultantly worst agitation. Phentermine should not be taken in case of agitation.

Phentermine for Weight Loss side effects:

Common side effects of Phentermine include increased heart rate, tingling or pickling feeling in hands or feet, dry mouth, sleeplessness, nervousness, constipation, high blood pressure, nausea, diarrhea, headache, and fatigue, etc.

On the other hand, there are certain side effects of this drug which include shortness of breath, fluttering heartbeat, cyanosis, dizziness, angina, edema causing swelling of legs and ankles, hypertension, insomnia, etc.

Although Phentermine is normally prescribed medication for weight loss, it is not considered a good medication in cases of heart disease, high blood pressure, an overactive thyroid gland, or glaucoma. Phentermine shall also be refrained from using during pregnancy or breastfeeding.

Considerations for taking Phentermine for Weight Loss:

  • The drug phentermine can be taken with or without food.
  • Phentermine must be taken one dose per day, preferably in the morning, because it may cause trouble in sleeping if taken late in the day.
  • The phentermine tablet or capsule must not be cut or crushed.
  • The drug should be stored at room temperature between 68°F and 77°F, i.e., 20°C and 25°C.
  • Phentermine to lose weight must be kept away from sunlight.
  • It should now be stored in moist or damp places.


Research has depicted that Phentermine can stimulate fat loss. Typically, the anticipated average weight loss with phentermine use is 5% of the primary body weight.

The weight loss percentage can increase up to 10% after 12 weeks of use. Thus, to sum it up, Phentermine can result in a 10-20 pounds reduction in weight of a 200-pound person.

It is also known that Phentermine used in combination with Topiramate results in a medication that is commonly available in the market under the brand name Qsymia. It can result in the highest level of weight reduction.

What to avoid?

Driving or adventurous activities should be avoided until the effects of Phentermine are clear. Moreover, consumption of alcohol with Phentermine to lose weight can result in severe side effects.

What special dietary instructions to follow?

While taking Phentermine for weight loss, the intake of fluids must be increased. It is generally recommended to follow the routine diet unless the doctor suggests otherwise.

What other drugs can affect Phentermine for Weight Loss?

Intake of Phentermine in addition to other diet medications, for instance, fenfluramine (Phen-fen) or dexfenfluramine (Redux), may result in a fatal lung disorder known as pulmonary hypertension. Numerous other drugs can react with Phentermine for weight loss, including vitamins, herbal medicines, etc.

So, it is advised not to take any other diet medication along with Phentermine to lose weight without the doctor’s consultation.


Phentermine is a prescription-only medication that functions as an appetite suppressant. It is only prescribed for a short-term period. The phentermine and diet combination works much more effectively as compared to Phentermine to lose weight alone.

The medication has certain side effects as well, including dizziness, dry mouth, fatigue, irritability, constipation, etc.  During the intake of Phentermine for weight loss, it is very important to maintain a healthy lifestyle, eat good food, and take a proper diet for long-term health and success.

You can visit our Website for more information about Phentermine for Weight Loss Treatment. You also can reach out to us directly to schedule Phentermine for Weight Loss Treatment and Care appointments.

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