Phentermine (K-25) 37.5mg


SKU: N/A Category:


What Is Phentermine?

Phentermine is a medication for obesity treatment. Its action is based on the release of norepinephrine, which suppresses appetite.

The FDA approved Phentermine as an appetite suppressant in 1959. It has since been released on the market under various trade names.


Proceed To Order Phentermine Online

Currently, you can buy Phentermine under the following brand names:

  • Ionamin®
  • Adipex®, 
  • Adipex-P®
  • Duromine®
  • Lomaira®
  • Oby-Cap®
  • Suprenza®
  • T-Diet®
  • Zantryl®
  • Qsymia®

You need to have a prescription to purchase Phentermine (no over-the-counter options).

As with other weight-loss drugs which are chemically related to amphetamine, the drug is available only on prescription and is regarded under US Controlled Substances Act as a controlled substance.

Long-term use of such drugs can cause addiction and physical dependence. That is why Phentermine is allowed only for short-term use.

SmithKline Beecham’s brand of phentermine, Fastin, was removed from the market in 1996. A compound of Phentermine and fenfluramine or dexfenfluramine was removed from the market because the drug dramatically increased the risk of heart valve disease.

Phentermine itself, however, is still regarded as safe and effective by the FDA. There is no evidence to suggest dangerous side effects.

It has been widely available since the 70s and has proven a dramatically effective short-term weight loss aid.

The FDA classifies phentermine as a schedule IV controlled substance.

How Does Phentermine Work?

The drug acts upon the central nervous system, resulting in decreased appetite and working in much the same way as phendimetrazine, another commonly used appetite suppressant.

Simply put, the drug causes the generation of adrenalin which sends the body into ‘fight or flight mode and cutting off the hunger signal before it reaches the brain.

Who Should Use Phentermine?

Phentermine is prescribed for weight loss in obese people. It is used only as part of a comprehensive therapy involving lifestyle changes that include dietary restrictions and/or physical activity. The duration of treatment cannot be very long and is limited to a few weeks.

Phentermine Dosage

Take 15, 30, or 37.5 mg of phentermine oral pills per day.

Your doctor will determine the correct dosage for you.

Short-acting forms of Phentermine are prescribed 3 times a day 30 minutes before meals.

Phentermine retard is taken once a day before breakfast.

Doctors do not recommend to use Phentermine combined with any other appetite suppressants.

Side Effects

The main side effects of Phentermine are:

  • dry mouth;
  • constipation;
  • insomnia;
  • dizziness;
  • a moderate increase in blood pressure;
  • tachycardia.

Phentermine may cause dependence, but the risk of addiction and dependence is considered relatively low.

Rare cases of stroke, myocardial infarction, heart failure, and cardiac arrest have been reported.

The central nervous system effects include restlessness, nervousness, insomnia, tremors, dizziness, and headache.

Other side effects include difficulty urinating, rash, impotence, libido changes, and facial swelling.


Avoid taking Phentermine is the case of:

  • Hypersensitivity;
  • Drug addiction (including history);
  • Allergy to sympathomimetic amine drugs;
  • Concomitant use of MAO inhibitors;
  • Cardiovascular disease;
  • Hyperthyroidism;
  • Glaucoma;
  • Pregnancy;
  • Breastfeeding.
  • Interaction

Phentermine may decrease the effect of clonidine, methyldopa and guanethidine.

Drugs for the treatment of hypothyroidism may increase the effect of Phentermine.


The structure and pharmacological effects of phentermine are similar to those of amphetamine. Consequently, phentermine can be physically and psychologically addictive.

Therefore, people with a history of drug dependence should avoid using the drug.

Pregnancy And Breastfeeding

The FDA has not established whether or not using phentermine during pregnancy can cause harm to a fetus. Women who plan to become pregnant should consult a physician before using the drug their physician right away.

Phentermine can penetrate through breast milk. Thus, breastfeeding women should avoid using the drug.

Where To Buy Phentermine?

You can buy Phentermine online or in a physical pharmacy if you have a medical prescription. Phentermine is not available over the counter in the US.

If you have a prescription, you can order Phentermine from us. We offer free RX transfer. You can also benefit from our free next-day delivery.

Beware of websites selling Phentermine online without a prescription. There is a risk of getting fake or low-quality medicines. You cannot get Phentermine over the counter because it is a controlled (scheduled) drug by DEA.

Buying Phentermine generic online from rogue pharmacies can be risky. We suggest you to purchase Adipex only frop licensed pharmacies after consulting with your attending physician.

Online Doctors Who Prescribe Phentermine

With the telemedicine technology, it has become simple for people to ask for diagnosis and suitable treatment as per reports on the phone or other media. Through telemedicine, the main benefit for people is there is no need for any face-to-face interaction to ask for any medical treatment.

There are many benefits to take advantage of with telemedicine. The major benefits are a cost-effective, immediate, and effective way to deliver medical services.

You can also benefit from contacting a doctor who prescribes Phentermine online. After online video consultation with a physician, you will get a Phentermine prescription.

However, not all US states allow prescribing Phentermine online. Basically, all telemedicine services are forbidden in those states. In this case, you need to have a person-to-person consultation with a physician.

If you do not trust telemedicine services, you can ask your family doctor to prescribe you Phentermine. It is the easiest way to get the desired drug for most people.

Of course, the presence of obesity symptoms and the absence of contraindications for Phentermine are a must to get a prescription from your doctor.

You can also use the services of weight loss clinics to get the drug. In this case, a weight-loss specialist will offer you numerous ways to treat your obesity.

Some treatment methods will include Phentermine, and some not. A physician from this clinic will advise the best way for you to lose weight.


Studies of Phentermine have shown:

  • Studies have shown that Phentermine increases patient’s weight loss by 3-4% compared to placebo.
  • Adrenergic stimulants increase norepinephrine release in certain brain regions, resulting in decreased food intake
  • Only limited data exist on the efficacy and safety of Phentermine
  • Blood pressure should be monitored closely in patients who are prone to elevated blood pressure or who are receiving hypotensive therapy
  • There is a potential risk of addiction to phentermine
  • Approved for short-term use only.
  • Limited evidence suggests that stimulants may be effective for a period of up to 10 years.
  • Weight loss with phentermine is usually more than 1 pound per week compared to placebo

Is Phentermine Effective?

Phentermine is an effective medicine for people who need to lose weight to decrease diseases associated with their significant obesity. The amount of weight loss depends on the degree of caloric restriction and an exercise program.

Additional information


100 Pills, 250 Pills, 500 Pills, 1000 Pills


There are no reviews yet.

Be the first to review “Phentermine (K-25) 37.5mg”

Your email address will not be published. Required fields are marked *