> ## Documentation Index
> Fetch the complete documentation index at: https://docs.hi-doctor.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Phentermine

> Phentermine has no EU marketing authorisation for weight loss — why EU regulators withdrew this drug class, and what a doctor considers instead.

Phentermine is an old appetite-suppressant tablet, related to amphetamine,
widely prescribed in the United States for short-term weight loss. It is a
different situation in Europe, and Hi-Doctor does not offer it.

<Note>
  We don't prescribe phentermine today, but our doctors can review your case
  and propose an equivalent weight-management treatment with EU authorisation.
</Note>

## What it is

Phentermine is an appetite suppressant chemically related to amphetamine
that raises the level of noradrenaline in the brain, which reduces feelings
of hunger.

## Why it isn't authorised in the EU

European regulators reviewed this whole class of appetite suppressants in
1999, decided they had not been shown to work over the long term, and the
European Commission ordered countries to withdraw them in March 2000. The EU
courts later annulled those decisions on a technical point about the
Commission's powers, but the products did not return to the market.

Phentermine on its own is not authorised as a weight-loss medicine in the
European Union today, so an EU doctor cannot prescribe it and an EU pharmacy
cannot dispense it.

<Warning>
  Websites selling phentermine to EU addresses are operating outside EU
  medicines law, and what arrives in the post has not been checked by any
  European regulator.
</Warning>

## What the studies reported

The EQUATE trial ran for only 28 weeks and was designed to test a
phentermine/topiramate combination — the phentermine-only groups were
comparison arms, not the trial's primary focus ([Obesity — EQUATE trial, Aronne 2013](https://clinicaltrials.gov/study/NCT00563368),
ClinicalTrials.gov · NCT00563368). There is no modern long-term trial of
phentermine on its own, and EU regulators concluded in 1999 that this class
of appetite suppressant had not shown long-term efficacy in obesity. A
readout is not the same as peer-reviewed publication.

## What has been reported

| Concern              | What's known                                                                                                                                                                                                       |
| -------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| Increased heart rate | The EMA's committee cited this, and the unclear long-term effects on the heart and blood vessels, as a reason for refusing the EU-wide phentermine/topiramate application                                          |
| Potential for misuse | The Swedish Medical Products Agency assessment notes that phentermine's structural, pharmacological and neurochemical profile is similar to amphetamine, and that abuse potential has been shown in animal studies |

Sources: [EMA — Questions and answers on the refusal of the marketing authorisation for Qsiva](https://www.ema.europa.eu) (phentermine/topiramate); Swedish Medical Products Agency — Qsiva Public Assessment Report; [EUR-Lex — Commission Decision C(2000) 452](https://eur-lex.europa.eu) of 9 March 2000; EUR-Lex — Artegodan and Others v Commission, Joined Cases T-74/00 and others.

## What can be considered instead

<CardGroup cols={2}>
  <Card title="Semaglutide (Wegovy / Ozempic)" icon="syringe">
    Weekly GLP-1 receptor agonist. A doctor may prescribe it if BMI and
    history match the indications. Requires follow-up.
  </Card>

  <Card title="Tirzepatide (Mounjaro)" icon="syringe">
    Dual GLP-1/GIP agonist, assessed by the doctor based on comorbidities and
    BMI. Full detail on the [Mounjaro page](/library/medicines/mounjaro).
  </Card>

  <Card title="Liraglutide (Saxenda)" icon="syringe">
    Daily GLP-1 agonist, indicated in selected patients with elevated BMI
    after medical evaluation.
  </Card>

  <Card title="Orlistat 120mg" icon="pills">
    Fat-absorption inhibitor, a non-GLP-1 alternative a doctor may consider.
    See the [alli / orlistat page](/library/medicines/alli).
  </Card>
</CardGroup>

<Note>
  A once-daily semaglutide tablet ([Rybelsus](/library/medicines/rybelsus)) is
  also authorised in the EU, but only for type 2 diabetes — any use in weight
  management is an individual medical decision and may be off-label.
</Note>

A licensed doctor decides case by case, never automatically. Our doctors
review every [weight-loss option](/essentials/treatments) and recommend what
fits your history and goals.

## How Hi-Doctor handles it

The questionnaire covers weight, medical history and current medication —
see how [eligibility works](/essentials/how-it-works). The consultation cost
is set out on [pricing](/essentials/pricing); any medicine a doctor does
prescribe is paid separately at a pharmacy.

## Start a consultation

<Card title="Weight-loss consultation" icon="stethoscope" href="https://hi-doctor.ai/consultation/weight-loss/1">
  Answer the weight-loss questionnaire and a registered doctor reviews it.
  They decide whether treatment is appropriate, which one, and at what dose —
  and declining is a normal outcome. See [what it costs](/essentials/pricing)
  and [how the review works](/essentials/how-it-works).
</Card>

<Warning>
  This page is reference information, not medical advice and not a prescription.
  Whether a medicine is appropriate for you is decided by a registered doctor
  after reviewing your consultation.
</Warning>
