Fastin

Caloric Restriction, Obesity, Type 2 Diabetes + 6 more

Treatment

3 FDA approvals

20 Active Studies for Fastin

What is Fastin

Phentermine

The Generic name of this drug

Treatment Summary

Phentermine is a drug used to control weight, and it was first introduced in 1959. It is related to, but not as strong as amphetamines and is classified as a Schedule IV drug, meaning it has a low potential for abuse. Phentermine was initially available as part of a combination drug with other medications, but later it was approved on its own. In 2012, a new combination of phentermine with topiramate was approved, which requires lower doses of phentermine to be effective.

Ionamin

is the brand name

image of different drug pills on a surface

Fastin Overview & Background

Brand Name

Generic Name

First FDA Approval

How many FDA approvals?

Ionamin

Phentermine

1959

298

Approved as Treatment by the FDA

Phentermine, also known as Ionamin, is approved by the FDA for 3 uses including Obesity and Comorbidity .

Obesity

Used to treat Obesity in combination with Topiramate

Comorbidity

Used to treat one related comorbidity in combination with Topiramate

Regime of weight reduction

Effectiveness

How Fastin Affects Patients

Phentermine works by suppressing appetite and increasing the amount of energy the body uses while resting. Clinical studies show that people taking phentermine lose an average of 3.6 kilograms in 2-24 weeks compared to those taking a placebo. Even after treatment ends, patients tend to keep the weight off. Phentermine is related to amphetamines, but does not have any of the same stimulating or dangerous effects, like high blood pressure or an irregular heartbeat.

How Fastin works in the body

Phentermine works by increasing the amount of a chemical called noradrenaline in the brain. Noradrenaline is a kind of hormone that triggers a “fight or flight” response, which suppresses the feeling of hunger and reduces the need for energy. It also has an indirect effect on serotonin, another hormone that helps regulate appetite. Additionally, it is thought that phentermine may inhibit a chemical called neuropeptide Y, which is involved in hunger signals. Finally, it is a weak inhibitor of monoamine oxidase, which may contribute to its effects.

When to interrupt dosage

The recommended dosage of Fastin hinges on the diagnosed circumstance, including Regime of weight reduction, Hyperlipidemia and Type 2 Diabetes. The measure of dosage is contingent upon the technique of administration (e.g. Oral or Tablet) mentioned in the table underneath.

Condition

Dosage

Administration

Obesity

, 30.0 mg, 15.0 mg, 37.5 mg, 3.75 mg, 7.5 mg, 11.25 mg, 8.0 mg, 18.8 mg

Oral, , Capsule, Capsule - Oral, Capsule, extended release - Oral, Capsule, extended release, Tablet - Oral, Tablet, Tablet, orally disintegrating - Oral, Tablet, orally disintegrating

Caloric Restriction

, 30.0 mg, 15.0 mg, 37.5 mg, 3.75 mg, 7.5 mg, 11.25 mg, 8.0 mg, 18.8 mg

Oral, , Capsule, Capsule - Oral, Capsule, extended release - Oral, Capsule, extended release, Tablet - Oral, Tablet, Tablet, orally disintegrating - Oral, Tablet, orally disintegrating

Type 2 Diabetes

, 30.0 mg, 15.0 mg, 37.5 mg, 3.75 mg, 7.5 mg, 11.25 mg, 8.0 mg, 18.8 mg

Oral, , Capsule, Capsule - Oral, Capsule, extended release - Oral, Capsule, extended release, Tablet - Oral, Tablet, Tablet, orally disintegrating - Oral, Tablet, orally disintegrating

Hypertensive disease

, 30.0 mg, 15.0 mg, 37.5 mg, 3.75 mg, 7.5 mg, 11.25 mg, 8.0 mg, 18.8 mg

Oral, , Capsule, Capsule - Oral, Capsule, extended release - Oral, Capsule, extended release, Tablet - Oral, Tablet, Tablet, orally disintegrating - Oral, Tablet, orally disintegrating

High Cholesterol

, 30.0 mg, 15.0 mg, 37.5 mg, 3.75 mg, 7.5 mg, 11.25 mg, 8.0 mg, 18.8 mg

Oral, , Capsule, Capsule - Oral, Capsule, extended release - Oral, Capsule, extended release, Tablet - Oral, Tablet, Tablet, orally disintegrating - Oral, Tablet, orally disintegrating

Regime of weight reduction

, 30.0 mg, 15.0 mg, 37.5 mg, 3.75 mg, 7.5 mg, 11.25 mg, 8.0 mg, 18.8 mg

Oral, , Capsule, Capsule - Oral, Capsule, extended release - Oral, Capsule, extended release, Tablet - Oral, Tablet, Tablet, orally disintegrating - Oral, Tablet, orally disintegrating

Chronic Weight Management therapy

, 30.0 mg, 15.0 mg, 37.5 mg, 3.75 mg, 7.5 mg, 11.25 mg, 8.0 mg, 18.8 mg

Oral, , Capsule, Capsule - Oral, Capsule, extended release - Oral, Capsule, extended release, Tablet - Oral, Tablet, Tablet, orally disintegrating - Oral, Tablet, orally disintegrating

increase in physical activity

, 30.0 mg, 15.0 mg, 37.5 mg, 3.75 mg, 7.5 mg, 11.25 mg, 8.0 mg, 18.8 mg

Oral, , Capsule, Capsule - Oral, Capsule, extended release - Oral, Capsule, extended release, Tablet - Oral, Tablet, Tablet, orally disintegrating - Oral, Tablet, orally disintegrating

Comorbidity

, 30.0 mg, 15.0 mg, 37.5 mg, 3.75 mg, 7.5 mg, 11.25 mg, 8.0 mg, 18.8 mg

Oral, , Capsule, Capsule - Oral, Capsule, extended release - Oral, Capsule, extended release, Tablet - Oral, Tablet, Tablet, orally disintegrating - Oral, Tablet, orally disintegrating

Warnings

Fastin Contraindications

Condition

Risk Level

Notes

Hyperthyroidism

Do Not Combine

concomitant use or 14 days after discontinuation

Do Not Combine

Agitation

Do Not Combine

Drug abuse

Do Not Combine

Cardiovascular Diseases

Do Not Combine

Open-angle glaucoma

Do Not Combine

Severe Hypersensitivity Reactions

Do Not Combine

Phentermine may interact with Pulse Frequency

There are 20 known major drug interactions with Fastin.

Common Fastin Drug Interactions

Drug Name

Risk Level

Description

Iobenguane

Major

Phentermine can cause a decrease in the absorption of Iobenguane resulting in a reduced serum concentration and potentially a decrease in efficacy.

Methylene blue

Major

Phentermine may increase the serotonergic activities of Methylene blue.

Mirtazapine

Major

Phentermine may increase the serotonergic activities of Mirtazapine.

1-benzylimidazole

Minor

The therapeutic efficacy of 1-benzylimidazole can be decreased when used in combination with Phentermine.

4-Methoxyamphetamine

Minor

The risk or severity of hypertension can be increased when Phentermine is combined with 4-Methoxyamphetamine.

Fastin Toxicity & Overdose Risk

The toxic dose of phentermine in rats is reported to be 151 mg/kg. Overdosing on this drug can cause restlessness, tremors, confusion, hallucinations, fatigue, depression, fast heartbeat, arrhythmias, high or low blood pressure, nausea, vomiting, diarrhea, abdominal cramps, skin problems, insomnia, irritability, hyperactivity, and changes in personality. In severe cases, this can lead to a psychosis-like state. Studies have not been done to determine if phentermine causes cancer or mutations.

image of a doctor in a lab doing drug, clinical research

Fastin Novel Uses: Which Conditions Have a Clinical Trial Featuring Fastin?

104 active clinical trials are currently being conducted to assess the value of Fastin in the management of Type 2 Diabetes, Weight Loss Regime and Disease.

Condition

Clinical Trials

Trial Phases

Type 2 Diabetes

89 Actively Recruiting

Phase 1, Phase 2, Not Applicable, Phase 3, Phase 4, Early Phase 1

Obesity

0 Actively Recruiting

Hypertensive disease

0 Actively Recruiting

Comorbidity

0 Actively Recruiting

High Cholesterol

18 Actively Recruiting

Phase 2, Phase 3, Early Phase 1, Not Applicable

Caloric Restriction

0 Actively Recruiting

Regime of weight reduction

0 Actively Recruiting

increase in physical activity

0 Actively Recruiting

Chronic Weight Management therapy

0 Actively Recruiting

Fastin Reviews: What are patients saying about Fastin?

5

Patient Review

6/6/2010

Fastin for Overweight

I had way more energy and didn't crave food as much. I lost 36 pounds in 3 months, but gained it all back after stopping the treatment. It's really effective, but made me dizzy and not want to eat at first.

5

Patient Review

6/17/2011

Fastin for Overweight

I do not recommend this drug, especially for those who are under the age of 18. I experienced an abnormal heart rate, shakes, and hallucinations.

5

Patient Review

9/1/2010

Fastin for Overweight

I initially lost 75 pounds and have been able to keep off 60 of those pounds for over a year now.

5

Patient Review

2/23/2011

Fastin for Overweight

This treatment has helped me a lot. I feel much more motivated and clearheaded now.

5

Patient Review

8/9/2009

Fastin for Overweight

5

Patient Review

9/10/2009

Fastin for Overweight

5

Patient Review

9/10/2009

Fastin for Overweight

5

Patient Review

10/15/2009

Fastin for Overweight

4.7

Patient Review

12/17/2009

Fastin for Overweight

I have been on fasten for two weeks- already lost 8 pounds with no noticeable side effects (just a little dry mouth, but that's easy to fix with water). This drug is wonderful- my goal is to lose 50 pounds and I'm confident that I'll reach it. I also used to have CFS but not anymore! I can stay awake to watch a movie now, which makes me so happy.

4.7

Patient Review

2/13/2010

Fastin for Overweight

I started taking this medication at the end of August and have since lost 30 pounds. I've been feeling really energetic and motivated to exercise, which has been great!

4.3

Patient Review

6/22/2011

Fastin for Overweight

I haven't been taking this pill every day as recommended because I get really hungry when I do. Even just taking it 2-3 days in a row makes me ravenous. There are no side effects that I've noticed, which is great, but the hunger is hard to manage. So far I've only been taking it 3 days a week and eating fruit during the day, plus a meal when I get home. In three weeks I've lost at least 8lbs. Does anyone have any suggestions or know if it would work better if taken everyday?

4

Patient Review

8/6/2009

Fastin for Overweight

3.7

Patient Review

11/17/2011

Fastin for Overweight

This medication was effective in reducing my appetite. However, I also experienced an embarrassing side effect that I have not seen listed anywhere else: an inability to urinate. This happened regardless of how much fluids I consumed or how long I waited. If anyone else has had this problem, please let me know.

2.7

Patient Review

5/29/2010

Fastin for Overweight

I saw the best results when I remembered to take this medication on an empty stomach, though after a few months the effectiveness decreased. The time-released capsules were especially helpful.
image of drug pills surrounding a glass of water symbolizing drug consumption

Patient Q&A Section about fastin

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

Is phentermine and fastin the same thing?

"Phentermine is an appetite suppressant that is used as a short-term weight loss aid.

The drug Fastin was once a brand name of phentermine, which was manufactured by King Pharmaceuticals. Phentermine is an appetite suppressant that is used to help with short-term weight loss."

Answered by AI

What does fastin mean?

"It is called "diet pills" because it makes dieting easier by suppressing the appetite.

Amphetamines and other psychoactive drugs that help with weight loss by suppressing appetite are colloquially known as "diet pills.""

Answered by AI

What are fastin pills?

"An prescription medication, Fastin, is available to help treat Obesity. Fastin can be used by itself or in combination with other drugs. Classified as a CNS Stimulant, Anorexiant, and Stimulant, Fastin works by affecting the levels of certain neurotransmitters in the brain."

Answered by AI

Is the drug fastin still available?

"Fastin, a brand name drug, is no longer available in the United States. The generic version of the drug is still available, however."

Answered by AI

Clinical Trials for Fastin

Image of University of Alberta in Edmonton, Canada.

Pharmacist-led Care for Diabetes

18+
All Sexes
Edmonton, Canada

As of 2024, nine percent of Albertans are living with Type 2 diabetes, which increases their risk for cardiovascular disease, stroke, blindness, and kidney failure. Unfortunately, less than half of patients have controlled Type 2 diabetes. We are well aware of the factors which lead to worsening diabetes, but need to give people more support to help them manage their diabetes. Pharmacists are respected health care professionals who are often easier to see that doctors and can help people with diabetes to stay as healthy as possible. This research project aims to see whether a pharmacist service can help improve diabetes management in people with type 2 diabetes compared to usual care from their family physician or nurse practitionner. The potential impact of this project is to empower people with type 2 diabetes to understand their condition, it's management, and to achieve target blood sugar levels, which will ultimately reduce the risk of diabetes-related complications.

Recruiting
Has No Placebo

University of Alberta

Ross Tsuyuki, BScPharm, PharmD, MSc

Have you considered Fastin clinical trials?

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Image of Lipid Clinic at Brown University Health in Providence, United States.

2-HOBA Supplementation for High Cholesterol

18 - 69
All Sexes
Providence, RI

The goal of this clinical trial is to learn if a natural supplement called 2-hydroxybenzylamine (2-HOBA) can reduce harmful oxidized lipids and improve the function of lipoprotein(a) in adults with high lipoprotein(a) levels. The main questions it aims to answer are: Does 2-HOBA lower oxidized phospholipids on lipoprotein(a)? Does 2-HOBA reduce markers of inflammation and blood clotting in the blood? Participants will: Take 2-HOBA capsules (400 mg, three times daily with meals) for 6 weeks Provide blood and urine samples at the beginning, middle, and end of the study Have lab tests to measure changes in lipids, inflammation, and clotting markers

Waitlist Available
Has No Placebo

Lipid Clinic at Brown University Health

Wenliang Song, MD

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We made a collection of clinical trials featuring Fastin, we think they might fit your search criteria.
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Image of Sidney & Lois Eskenazi Hospital in Indianapolis, United States.

Composite Intervention for Metabolic Syndrome

18+
All Sexes
Indianapolis, IN

The objective of this study is to pilot a multifaceted, optimized intervention for metabolic syndrome (MetS) in emergency department patients to establish feasibility. Participants (n=20) will be randomized to intervention or control (usual care). The composite intervention will include an educational video outlining the adverse effects of MetS and the benefit of walking, a written exercise prescription with a defined goal of walking 150 minutes per week, a Fitbit accelerometer device, resources for healthy eating practices, periodic text message reminders, and an urgent referral to primary care and our health system's Healthy Me clinic for follow-up visit. Investigators hypothesize that this approach will change patient understanding and motivation to increase physical activity and healthy eating habits.

Recruiting
Has No Placebo

Sidney & Lois Eskenazi Hospital

Image of Duke University Medical Center in Durham, United States.

Cardiometabolic Prevention Clinic for Cardiovascular Disease

18+
All Sexes
Durham, NC

This project is studying whether a team-based specialty clinic can help people with type 2 diabetes and heart disease better manage their blood pressure and cholesterol. The clinic includes coordinated care from heart doctors, kidney doctors, diabetes specialists, and liver doctors. The study will compare two groups of patients: one receiving usual care from their primary care provider, and one referred to the Duke Cardiometabolic Prevention Clinic for multidisciplinary care. The main goals are to find out if this clinic improves blood pressure and cholesterol control over 12 months, increases use of recommended heart medications, and reduces hospital visits and other healthcare use. Participants will be randomly assigned to one of the two groups. Those referred to the clinic will: 1) Meet with a cardiologist for an initial evaluation. 2) Be referred to other specialists (such as endocrinology, nephrology, or hepatology) based on their needs. 3) Receive ongoing, coordinated care from a team of specialists working together to improve their heart and metabolic health.

Recruiting
Has No Placebo

Duke University Medical Center

Neha J Pagidipati, MD, MPH

Have you considered Fastin clinical trials?

We made a collection of clinical trials featuring Fastin, we think they might fit your search criteria.
Go to Trials