FACTUAL INFORMATION, TIPS, AND REVIEWS Learn about Phentermine The most widely prescribed weight-loss medication in the United States. Phentermine Overview Learn about phentermine and succeed in your weight loss journey. What Is Phentermine Used For? Phentermine is a schedule IV prescription drug used to treat obesity. It can help suppress appetite and make you feel full longer. First approved in 1959, phentermine is the most-prescribed weight loss medication in the United States. It has been proven effective for short-term weight loss when used alongside a reduced-calorie diet and exercise. Brand Names Popular phentermine brands currently prescribed in the United States are Adipex, Qsymia (phentermine-topiramate), and Lomaira. Well-known brands from Mexico and Chile include Acxion and Terfamex. Discover all phentermine brands Dosage While phentermine 37.5 mg is the most commonly-prescribed dose of phentermine, daily phentermine dosage varies widely from patient to patient: DoseDosage8 mg1-3 times per day, 30 minutes before meals15 mg1-2 times per day, 2 hours after eating18.75 mg1-2 times per day, on an empty stomach30 mgOnce per day, before breakfast or 1-2 hours after breakfast37.5 mgOnce per day, before breakfast or 1-2 hours after breakfast Learn more about phentermine dosage Side Effects Phentermine produces a wide range of unpleasant side effects. The severity of these reactions ranges from mild to life-threatening. Common side effects of phentermine include headache, insomnia, dry mouth, and constipation. Tell your doctor right away if you have any serious side effects, such as irregular heartbeat, mood changes (such as phen rage, hallucinations, nervousness), uncontrolled muscle movements, or a change in sexual desire. Stop taking phentermine and get medical help right away if you have very serious side effects. These include severe headaches, trouble speaking, seizure, weakness on one side of the body, or blurred vision. It’s important to understand the risks before undergoing treatment with this medication. See all phentermine side effects User Reviews A doctor’s assessments of potential weight loss and possible side effects are crucial. Still, many users also want to hear the opinions and reviews from patients that lost or are trying to lose weight with phentermine. 11 Pounds x 3 Weeks5 star rating5 star rating5 star rating5 star rating5 star ratingAbout 3 weeks ago, I made a complete lifestyle change. I’m working out 4 days a week. Drinking smoothies and eating smaller portions. I went in for my monthly check-up and lost 11 pounds. I look forward to the next couple of months.Riba93822_ 5 Stars5 star rating5 star rating5 star rating5 star rating5 star ratingLost 22 pounds! I am tapering down my medication now (under supervision). I already track my calories, but what I liked best about the phentermine was that I don’t think about food, and emotional eating is kept better in check.Rita Read more reviews Results With Before and After Pictures Phentermine before and after pictures and hearing about the detailed results from actual users is a vital source of information and motivation as you embark on a weight loss journey of your own. Brent lost 90 pounds Sabrina lost 50 pounds See more results Where Can I Get Phentermine to Lose Weight? Phentermine hydrochloride (phentermine HCL) is the active ingredient in phentermine weight loss pills. It is a class IV controlled substance because of its serious side effects and addiction potential. Phentermine is, therefore, not available over the counter. A doctor’s prescription is needed if you want to lose weight with phentermine. Most people get their phentermine prescription from a family or primary care doctor. Another option is specialists, such as bariatric doctors or gynecologists. Also, consider a weight loss clinic if you do not have health insurance, do not have a primary care doctor, or cannot find a doctor in your network that prescribes phentermine. Learn about how to get a prescription Phentermine comes with many undesirable side effects. Is There a Safe Alternative to Phentermine? Yes, there is! It’s called Phen Caps. Many people fear the strong and potentially life-threatening side effects of phentermine and ultimately decide NOT to take the medication. Instead, they choose the natural phentermine alternative, Phen Caps, which is proven to produce no side effects at all. Plus, it is readily available without a prescription! Get 20% Off Phen Caps Now! Compare Phen Caps to Phentermine Popular Questions Naturally, users have many questions about phentermine. Here are some of the most frequently asked ones: Is phentermine a controlled substance? Phentermine is a stimulant that has a chemical structure similar to amphetamines and carries a risk of dependence and abuse. The United States Drug Enforcement Administration classifies phentermine as a class IV controlled substance. Therefore, phentermine is only available under a doctor’s prescription. What is phentermine-topiramate? A combination of phentermine and topiramate is used together with a reduced-calorie diet and proper exercise to treat obesity. Phentermine HCL works as a central nervous system stimulant to suppress hunger and boost energy. Topiramate is an anti-seizure medication that promotes weight loss as well. It increases feelings of fullness, makes food taste less appealing, and increases caloric expenditure. Phentermine/topiramate is sold under the brand name Qsymia. How much weight can you lose on phentermine? The minimum expected weight loss on phentermine is ≥5% of body weight in three months. In a trial, taking 37.5mg of phentermine for three months helped half of the participants lose at least 10% of their baseline body weight. The weight you can lose is, however, not a precise figure because weight loss varies so significantly from person to person. While some patients lose 20 or more pounds in a single month, others struggle to drop even one pound per week. Here are the 3-month weight loss goals for patients at different starting weights: Starting Weight (lbs)Short-Term Goal (-5%)Pounds to Lose140133716015281801719200190102202091124022812260247132802661430028515 Read more about the expected weight loss with phentermine How and when to take phentermine? Adults and children 16 years of age and older usually take phentermine first thing in the morning, before breakfast, or 10 to 14 hours before sleeping. Phentermine is a stimulant. Hence, if you take phentermine late at night, you could experience problems sleeping. It is important to always take phentermine as directed by your doctor. Learn more about how to take phentermine How to take phentermine 37.5 for best results? Phentermine 37.5 should be taken as directed by your doctor, usually once a day on an empty stomach before breakfast or 1 to 2 hours after breakfast. Always take phentermine as directed by your doctor. How long can you take phentermine? The Food and Drug Administration approves phentermine for use for up to 12 weeks (3 months). Since weight loss results vary from person to person, some doctors and weight loss clinics might prescribe it for longer use. What is the difference between phentermine capsules and tablets? There is no difference in weight loss results between phentermine capsules and tablets. Both capsules and tablets contain Phentermine HCL as the active ingredient and therefore have the same effects on your body. One disadvantage of phentermine tablets is that they need to swell up and disintegrate to release the ingredients. Capsules, on the other hand, have a much better absorption rate than tablets as they begin to dissolve immediately in the stomach. Another disadvantage of tablets is that they can pass through the body without being completely absorbed. However, tablets are cheaper to produce, so patients often find that their prescription is cheaper to fill. Read more about tablets vs capsules Why am I not losing weight with phentermine? There are several reasons you might not lose weight with phentermine, including: Eating too much or too little Not enough sleep An undiagnosed health issue, such as PCOS or diabetes Not getting sufficient vitamins Stress No exercise Not drinking enough water If you have been taking phentermine for a long time or are taking it for the second or third time, the body adapts to phentermine, and its effectiveness can decrease. Read more What can I do when phentermine stops working? Because of the body’s natural response to weight reduction and increased phentermine tolerance, users report that their phentermine has stopped working. Some of the best tips to avoid such a situation include regular exercise, eating nourishing foods, staying hydrated, prioritizing sleep, setting SMART goals, and adding a supplement. Read more about phentermine stopped working Will phentermine show up on a drug test? Phentermine can appear on a drug test as a false positive for amphetamine. Although phentermine is not an amphetamine, its chemical structure is similar to that of amphetamine, meaning that phentermine can give a false-positive result for amphetamine in a 5-panel drug screening urinalysis. Read more phentermine and drug tests How long does phentermine stay in your system? Although this varies depending on the person and their urinary pH, phentermine (Adipex) has a half-life of about 16-31 hours under normal conditions. Phentermine should not be detectable in the urine after a period of around four or seven days. Read more What is the highest dosage of phentermine? 37.5 mg is the highest dose of phentermine available in most countries, including the US, Mexico, Argentina, and Chile. Phentermine 37.5mg is also the most commonly-prescribed dose due to its widespread availability, high effectiveness, relative affordability, and overall convenience. Learn more about phentermine 37.5mg What if I Cannot Get a Prescription for Phentermine? Try Phen Caps. The Official OTC Alternative. Many people hear about phentermine and maybe even talk to their doctor about it, but ultimately decide NOT to take the medication. Instead, they choose the #1 phentermine alternative, Phen Caps, available without a prescription. Get 20% Off Phen Caps Now! Learn More about Phen Caps Helpful Weight Loss Resources. Compare phentermine to other weight loss medications on the market and get the best tips to succeed in your weight loss journey. Explore effective diets, workouts, and nutrition to boost your journey. Is the keto diet for me? Should I try HIIT? Any tips for healthy snacks? Choose from a selection of proven tactics to lose weight and feel good. Explore How to Lose More Weight Compare phentermine to other popular weight loss drugs on the market. What are the benefits of Contrave? Should I take Xenical? And what’s the difference to Alli? Find the medication that fits your weight loss needs best. Discover Other Weight Loss Drugs 10M+ People Supported 400+ Resources Available 14 Weight Loss Experts Weight Loss Results With Phentermine Read the astonishing success stories and look at hundreds of phentermine before and after pictures. “Exercise is very important, don’t give up, and don’t let no one bring you down.”Monica – lost 50lbs with Phentermine “I get stopped in the hallway at work and people tell me how awesome I look. Men check me out!!!”Sarah – lost 38lbs with Phentermine “Always stay focused on your goals. Don’t get discouraged if you don’t get the results you were hoping for right away.”Sabrina – lost 50lbs with Phentermine “I feel like a completely new person. It’s so great! Phentermine has been a blessing in disguise for me.“Stevie – lost 38lbs with Phentermine “Just keep at it. Don’t get discouraged… It’s normal to have good days and bad days.”Brent – lost 90lbs with Phentermine Click on the images to learn more about their incredible weight loss journeys and phentermine results! Share Your Results in Our Facebook Community Find motivation, support & advice on your weight loss journey with phentermine. Join Today Always Up-To-Date Stay informed with the latest developments around phentermine and weight loss science. Weight Loss New Study Shows Weight Loss Can Reduce The Need For Blood Pressure Medications Sally Cohen 18.08.2022 5 min read Weight Loss Researchers Suggest Bariatric Weight Loss Surgery Reduces Risk of Developing Cancer By 32% Sally Cohen 08.08.2022 5 min read Weight Loss Activity Trackers Can Increase Workout and Help Lose Weight, New Study Finds Sally Cohen 05.08.2022 5 min read View All As Seen On Phentermine.com has been featured and referenced on a wide selection of media outlets around the globe Subscribe for the Latest Tips & Reviews! 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