Apr 8, 2013 · PHEN is a noradrenergic drug, which is theorized to affect food intake primarily via the enhancement of norepinephrine release and possibly via the blockade of norepinephrine reuptake as well. It has been available in the US since 1959 for short-term (generally regarded as 12 weeks) treatment of obesity in dose range of 15 mg/day to 37.5 mg/day. Diphenhydramine is an antihistamine used to relieve symptoms of allergy, hay fever, and the common cold. These symptoms include rash, itching, watery eyes, itchy eyes /nose/throat, cough, runny ... What Are Side Effects of Qsymia? Side effects of Qsymia can include: mood changes such as depression, trouble sleeping (insomnia), confusion, dizziness, anxiety, tiredness, irritability, constipation, numbness or tingly feeling, altered sense of taste, dry mouth, unpleasant taste in your mouth, headache, upper respiratory tract infection,Phentermine has the advantage of low cost and many years of clinical experience, but its long-term use is considered off-label, long-term effects on CVD outcomes are unknown, and most use has been a few months or less. 41 There are even fewer data for long-term safety and efficacy of the other noradrenergic agents. Orlistat has a reasonably ...Phentermine Results after 3 Months. First of all, let us clarify if you take Phentermine HCL without any special diet or exercise plan, it is possible to lose around 8 pounds within the 3 months ...PHEN is a noradrenergic drug, which is theorized to affect food intake primarily via the enhancement of norepinephrine release and possibly via the blockade of norepinephrine reuptake as well. It has been available in the US since 1959 for short-term (generally regarded as 12 weeks) treatment of obesity in dose range of 15 mg/day to 37.5 mg/day.Apr 11, 2017 · Serious side effects vary by drug but can include depression, heart palpitations, fast or irregular heartbeat, increased blood pressure, dizziness, tremors, chest pain, and difficulty breathing ... Jun 4, 2020 · This combination consists of fixed lower doses of phentermine and topiramate (3.75/23, 7/46, 11.25/69 and 15/92 mg) and is available in capsules under the brand name Qsymia. Common side effects of phentermine include nervousness, excitability, insomnia, headache, dry mouth, sweating, tachycardia, palpitations, nausea, constipation, and thirst. The combination of phentermine and extended-release topiramate (Qsymia) was approved by the FDA in July 2012 as an adjunct to a reduced-calorie diet and exercise for long-term weight management in individuals with an initial BMI of 30 kg/m 2 or higher (obese) or 27 kg/m 2 or higher (overweight) with at least one weight-related comorbid ...Phentermine (Adipex-P, Lomaira) is a prescription medicine used to lessen appetite. It can help weight loss by making you less hungry. Or it can help you feel full longer. Phentermine also is offered combined with topiramate for weight loss (Qsymia). The combined drug is approved for long-term use.May 3, 2023 · 1. Nausea and vomiting. Nausea is the most common semaglutide side effect. Up to 20% of people taking it for Type 2 diabetes reported nausea in clinical trials. Nausea is even more common if you’re taking the higher-dose version for weight loss. Vomiting tends to be less common than nausea. Feb 3, 2023 · Phentermine alone is designed for short-term use only, as there are few long-term studies on its safety. One study observed that people experienced no significant side effects when they took ... In clinical studies, patients lost the most weight after taking Contrave for 36 weeks and maintained weight loss through 56 weeks. In terms of phentermine weight loss, studies were only done for a short period of time. Once you stop phentermine, your appetite will return to normal. As a result, weight gain may occur.Qsymia Dosage and Administration. Take orally once daily in morning. Avoid administration in evening to prevent insomnia ( 2.3 ). Recommended starting dosage is 3.75 mg/23 mg (phentermine mg/topiramate mg) daily for 14 days; then increase to 7.5 mg/46 mg daily ( 2.3 ).Qsymia has an average rating of 7.7 out of 10 from a total of 564 reviews on Drugs.com. 71% of reviewers reported a positive experience, while 15% reported a negative experience. Condition.Qsymia (phentermine and topiramate) is a weight loss medication used to help people who are overweight or obese, along with diet and exercise, to lose weight and keep the weight off. Common side effects of Qsymia include sensations of pricking, burning, tingling, or numbness of the skin; dizziness, blurred vision, fatigue, indigestion, urinary tract infections (UTIs), headache, nausea, back ...I have been on Qsymia since 2016, I lost 45 lbs and have kept it off since then. I weigh 163 and wish I could lose at least 8 more lbs, but I have plateaued. I have been taking it this long and had no side effects only at the first 2 weeks I had the tingling sensation on my legs.Aug 1, 2023 · tiredness and weakness. trouble thinking, speaking, or walking. upper right abdominal or stomach pain. weak or feeble pulse. weight gain. yellow eyes or skin. Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Common side effects of Xenical include: bowel urgency, frequent bowel movements, oily evacuation, oily rectal leakage, steatorrhea, and flatulence with discharge. Other side effects include: fecal incontinence. Continue reading for a comprehensive list of adverse effects. Applies to orlistat: oral capsules. Side effects include: Oily spotting ...Apr 11, 2017 · Serious side effects vary by drug but can include depression, heart palpitations, fast or irregular heartbeat, increased blood pressure, dizziness, tremors, chest pain, and difficulty breathing ... Aug 17, 2019 · 1. In 2012, a new medication called Qsymia (with both Adipex and Topamax components) became available for weight loss. It was the first FDA approved weight loss drug in its class. The weight loss pill is a combination of 2 existing drugs: phentermine and topiramate. This combination has been shown to be a good tool for weight loss in addition ... The table below lists prescription drugs approved by the FDA for weight loss. The FDA has approved five of these drugs—orlistat (Xenical, Alli), phentermine-topiramate (Qsymia), naltrexone-bupropion (Contrave), liraglutide (Saxenda), and semaglutide (Wegovy)—for long-term use. Topamax dosage for migraines. For people ages 12 and older, the recommended total daily dose for preventing migraines is 100 mg per day, divided into two doses. 6. Topamax can be prescribed for weight loss. Generic Topamax (topiramate) is used in combination with phentermine in a weight loss medication called Qsymia.Objective: The aim of this work was to study weight loss and risk of cardiovascular disease (CVD) or death associated with longer-term phentermine use. Methods: Using electronic health record data, 13,972 adults were identified with a first phentermine fill in 2010 to 2015, creating exposure categories according to a patient's duration of use (referent: ≤ 3 months). trouble sleeping (insomnia) new or worse irritability acting aggressive, being angry, or violent acting on dangerous impulses an extreme increase in activity and talking (mania) other unusual changes in behavior or mood Serious eye problems which include: It does not making you lose than reaching the idea, it is a compound that can be able to lose weight. It also leads to by increasing their absorption of physical activity and improvement Qsymia Long Term Side EffectsQsymia (phentermine and topiramate) is a weight loss medication used to help people who are overweight or obese, along with diet and exercise, to lose weight and keep the weight off. Common side effects of Qsymia include sensations of pricking, burning, tingling, or numbness of the skin; dizziness, blurred vision, fatigue, indigestion, urinary tract infections (UTIs), headache, nausea, back ... Phentermine and Qsymia are both medications used for weight loss. Phentermine is only approved for short-term usage, while Qsymia is approved for long-term use. Topiramate is a medication used to treat seizures and prevent migraines. It also happens to have a noticeable weight loss effect, although it’s not approved in Canada solely for ...Apr 21, 2022 · Topamax withdrawal can occur when it’s stopped abruptly instead of tapered. The greatest risk is that your seizures worsen. Instead of stopping Topamax at once, your HCP can help you taper your dosage gradually. 7. Gabapentin (Neurontin) Gabapentin (Neurontin) is FDA-approved to treat seizures and nerve pain. On the positive side, lower doses of semaglutide, the active ingredient in Wegovy, have been used to treat diabetes for several years now, though UpToDate, a site that aggregates research about treatments to support decision-making by physicians, notes that there have been very few trials lasting more than four years, so the long-term safety of ...Diphenhydramine is an antihistamine used to relieve symptoms of allergy, hay fever, and the common cold. These symptoms include rash, itching, watery eyes, itchy eyes /nose/throat, cough, runny ...Jan 6, 2021 · During the last few decades, some anti-obesity drugs were used to treat morbid obesity; however, many of them were removed from the market owing to long-term side effects, particularly cardiovascular issues . Since then, anti-obesity drug development process focusses on both weight loss efficacy and cardiovascular safety. Phentermine alone or in combination with topiramate is relatively safer. That is why the FDA re-approved the medication for short-term (3-month) weight loss use in 2012. Like other weight-loss drugs, phentermine seeks to complement a healthy lifestyle—not replace it. It is available in 3 formulations (the first 2 of which are phentermine only):Oct 27, 2021 · Introduction. The worldwide prevalence of overweight and obesity, defined as having a body mass index (BMI) between 25.0–29.9 kg/m 2 and ≥30.0 kg/m 2, 1 has almost tripled since the 1970s, with nearly 40% of adults being overweight and 13% obese, and these numbers have been steadily increasing. 2 Patients with obesity are at an increased risk of developing comorbidities such as ... Summary. Commonly reported side effects of orlistat include: bowel urgency, frequent bowel movements, oily evacuation, oily rectal leakage, steatorrhea, and flatulence with discharge. Other side effects include: fecal incontinence. Continue reading for a comprehensive list of adverse effects. Applies to orlistat: oral capsules.Phentermine and Qsymia are both medications used for weight loss. Phentermine is only approved for short-term usage, while Qsymia is approved for long-term use. Topiramate is a medication used to treat seizures and prevent migraines. It also happens to have a noticeable weight loss effect, although it’s not approved in Canada solely for ...trouble sleeping (insomnia) new or worse irritability acting aggressive, being angry, or violent acting on dangerous impulses an extreme increase in activity and talking (mania) other unusual changes in behavior or mood Serious eye problems which include: May 3, 2023 · 1. Nausea and vomiting. Nausea is the most common semaglutide side effect. Up to 20% of people taking it for Type 2 diabetes reported nausea in clinical trials. Nausea is even more common if you’re taking the higher-dose version for weight loss. Vomiting tends to be less common than nausea. It does not making you lose than reaching the idea, it is a compound that can be able to lose weight. It also leads to by increasing their absorption of physical activity and improvement Qsymia Long Term Side EffectsSep 30, 2022 · Along with its needed effects, liraglutide (the active ingredient contained in Saxenda) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. Check with your doctor immediately if any of the following side effects occur while taking liraglutide: More common. Bladder pain May 8, 2023 · In clinical studies, patients lost the most weight after taking Contrave for 36 weeks and maintained weight loss through 56 weeks. In terms of phentermine weight loss, studies were only done for a short period of time. Once you stop phentermine, your appetite will return to normal. As a result, weight gain may occur. Ozempic, a medication used in type 2 diabetes, is currently under review by the FDA to be approved for weight loss in overweight or obese adults. Phentermine may be a more accessible option to help you lose weight, but it should only be used for a few weeks. Both Ozempic and phentermine can help to curb your appetite so that you eat fewer ...After stopping phentermine, some people experience feelings of weariness and fatigue due to the sudden lack of chemical stimulation. If you are tired after stopping phentermine, take care to: Get enough sleep. Fuel your body with healthy foods: avoid high-fat, high-carb, and high-sugar goods that may worsen fatigue. Stay lightly active.However, the EMA has not approved this medication due to its abuse potential, the lack of long-term data on the cardiovascular effects of phentermine, and the cognitive side effects of topiramate—attention, language, and memory impairment . As this drug combination contains phentermine, it is a controlled DEA schedule IV substance.tiredness and weakness. trouble thinking, speaking, or walking. upper right abdominal or stomach pain. weak or feeble pulse. weight gain. yellow eyes or skin. Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine.The table below lists prescription drugs approved by the FDA for weight loss. The FDA has approved five of these drugs—orlistat (Xenical, Alli), phentermine-topiramate (Qsymia), naltrexone-bupropion (Contrave), liraglutide (Saxenda), and semaglutide (Wegovy)—for long-term use.Qsymia may affect how you think and cause confusion, problems with concentration, attention, memory or speech. Tell your healthcare provider if symptoms occur. Slowing of growth. Qsymia may slow the increase in height in children 12 years and older. Increases of acid in bloodstream (metabolic acidosis).Jan 12, 2023 · Qsymia works by reducing your appetite. In initial studies, Qsymia helped about 70% of adults lose at least 5% of their body weight after 1 year. Close to 50% of participants lost at least 10% of their body weight. When compared to Contrave, researchers found that Qsymia is usually the more effective option. 3. May 3, 2023 · 1. Nausea and vomiting. Nausea is the most common semaglutide side effect. Up to 20% of people taking it for Type 2 diabetes reported nausea in clinical trials. Nausea is even more common if you’re taking the higher-dose version for weight loss. Vomiting tends to be less common than nausea. 1. In 2012, a new medication called Qsymia (with both Adipex and Topamax components) became available for weight loss. It was the first FDA approved weight loss drug in its class. The weight loss pill is a combination of 2 existing drugs: phentermine and topiramate. This combination has been shown to be a good tool for weight loss in addition ...COMMON SIDE EFFECTS OF QSYMIA IN CHILDREN 12 YEARS OLD AND OLDER INCLUDE: Depression, dizziness, joint pain, fever, flu, and ankle sprain. POSSIBLE SIDE EFFECTS OF QSYMIA INCLUDE: Mood changes and trouble sleeping. Qsymia may cause depression or mood problems, and trouble sleeping. Tell your healthcare provider if symptoms occur.From research studies, an outline of the common and rare side effects associated with Qsymia is as follows: Common side effects (reported in more than 1% of patients): Paresthesia (tingling, numbness) of the extremities (15-38%) Dizziness (11-28%) Dysgeusia (abnormal taste sensation) (6-19%) Insomnia (7-17%) Constipation (6-16%)How Long Will Phentermine Last. This drug’s side effects are mild, including fatigue, dizziness, headache, restlessness, nervousness, impotence, sleepiness, and nausea. Phentermine is generally prescribed by doctors and used for depression that is not responding to other treatments. The drug is also used as a weight-loss aid.4. Avoid alcohol. Avoid drinking alcohol while taking Qsymia as it can increase your risk of serious side effects, such as central nervous system depression, and an increase in your risk of falls. 5. Don’t skip meals. Eating regular meals and snacks will help to prevent low blood sugar levels (hypoglycemia). 6. Now, semaglutide (under the brand name Wegovy) is FDA approved for weight loss. It can be used by adults with a body mass index (BMI) greater than or equal to 30 mg/kg² alone or 27 mg/kg² with at least one weight-related condition (e.g., high blood pressure, high cholesterol, Type 2 diabetes). Semaglutide is also approved for chronic weight ...Phentermine-Topiramate Capsule, Extended Release Multiphase 24 Hr (Capsule, ER Hr) - Uses, Side Effects, and More Common Brand(S): Qsymia Generic Name(S): phentermine-topiramate Qsymia's results have been clinically tested in two long-term studies with ... QSYMIA CAN CAUSE SERIOUS SIDE EFFECTS, INCLUDING: Birth defects (cleft lip/cleft palate). If you take Qsymia during ...Diphenhydramine is an antihistamine used to relieve symptoms of allergy, hay fever, and the common cold. These symptoms include rash, itching, watery eyes, itchy eyes /nose/throat, cough, runny ... Qsymia (phentermine and topiramate) is a weight loss medication used to help people who are overweight or obese, along with diet and exercise, to lose weight and keep the weight off. Common side effects of Qsymia include sensations of pricking, burning, tingling, or numbness of the skin; dizziness, blurred vision, fatigue, indigestion, urinary tract infections (UTIs), headache, nausea, back ... In fact, this sort of weight loss is referred to as yo-yo dieting (yes, even if it comes secondary to the use of prescription medication) and can cause some serious long-term problems. #2. Using Phentermine Daily Can and Dose Cause Metabolic Damage. Perhaps the single biggest reason to avoid using Phentermine is that it can cause something ...Mar 22, 2019 · An inexpensive weight-loss drug approved 60 years ago for only short-term use also may be safe and effective for longer-term treatment, according to a study conducted by researchers at Wake Forest ... Feb 25, 2021 · Ozempic, a medication used in type 2 diabetes, is currently under review by the FDA to be approved for weight loss in overweight or obese adults. Phentermine may be a more accessible option to help you lose weight, but it should only be used for a few weeks. Both Ozempic and phentermine can help to curb your appetite so that you eat fewer ... Qsymia is prescription-only weight loss medication that contains a combination of phentermine HCl and topiramate extended-release. This drug, which received FDA approval in 2012, helps manage obesity longer-term than phentermine alone, but also carries the risk of additional side effects (1, 2).COMMON SIDE EFFECTS OF QSYMIA IN CHILDREN 12 YEARS OLD AND OLDER INCLUDE: Depression, dizziness, joint pain, fever, flu, and ankle sprain. POSSIBLE SIDE EFFECTS OF QSYMIA INCLUDE: Mood changes and trouble sleeping. Qsymia may cause depression or mood problems, and trouble sleeping. Tell your healthcare provider if symptoms occur. Mar 22, 2019 · An inexpensive weight-loss drug approved 60 years ago for only short-term use also may be safe and effective for longer-term treatment, according to a study conducted by researchers at Wake Forest ... Jan 25, 2021 · These are the most common Topamax side effects, according to the manufacturer: Loss of appetite, changes in taste, weight loss, stomach pain, and even anorexia. GI side effects (nausea, diarrhea, indigestion) Tiredness. Paresthesia (tingling or prickling sensations) Speech problems. Cognitive dysfunction (trouble with memory and thinking) Upper ... or short-term obesity treatment in conjunction with lifestyle modifications, but is commonly used chronically. Topiramate, approved for treating epilepsy and preventing migraines, also induces weight loss. A single-dose combination of low-dose phentermine and topiramate extended-release was recently approved by the United States Food and Drug Administration as an adjunct to lifestyle ...Phentermine alone is designed for short-term use only, as there are few long-term studies on its safety. One study observed that people experienced no significant side effects when they took ...Jun 28, 2023 · After stopping phentermine, some people experience feelings of weariness and fatigue due to the sudden lack of chemical stimulation. If you are tired after stopping phentermine, take care to: Get enough sleep. Fuel your body with healthy foods: avoid high-fat, high-carb, and high-sugar goods that may worsen fatigue. Stay lightly active. Jul 18, 2021 · Paresthesia (tingling, numbness) of the extremities (15-38%) Dizziness (11-28%) Dysgeusia (abnormal taste sensation) (6-19%) Insomnia (7-17%) Constipation (6-16%) Dry mouth (5-14%) Headache (5-14%) Nausea (5-13%) Diarrhea (4-11%) Upper respiratory tract infection (4-9%) Serious side effects vary by drug but can include depression, heart palpitations, fast or irregular heartbeat, increased blood pressure, dizziness, tremors, chest pain, and difficulty breathing ...Jan 25, 2021 · These are the most common Topamax side effects, according to the manufacturer: Loss of appetite, changes in taste, weight loss, stomach pain, and even anorexia. GI side effects (nausea, diarrhea, indigestion) Tiredness. Paresthesia (tingling or prickling sensations) Speech problems. Cognitive dysfunction (trouble with memory and thinking) Upper ... Mar 29, 2022 · Tardive dyskinesia is a movement disorder that is a side effect of medications, especially first-generation antipsychotics. Less common causes are second-generation antipsychotics, antidepressants, mood stabilizers, antiepileptic drugs, movement disorder medications, antiemetics, and decongestants. Two medications have been approved to treat ... Phentermine is an effective weight loss pill, but due to stimulating effects, it may induce withdrawal symptoms in some people. Withdrawal symptoms occur when the brain is trying to adjust to the new situation. Persons experience symptoms such as fatigue, irritability, bad mood, among others.Qsymia works by reducing your appetite. In initial studies, Qsymia helped about 70% of adults lose at least 5% of their body weight after 1 year. Close to 50% of participants lost at least 10% of their body weight. When compared to Contrave, researchers found that Qsymia is usually the more effective option. 3.Extreme happiness or sadness. Symptoms of dangerously high blood pressure, such as severe headache, blurred vision, buzzing in your ears, anxiety, confusion, chest pain, shortness of breath, uneven heartbeats, or seizures. These symptoms can indicate a serious phentermine side effect.Apr 30, 2014 · This review showed that combining low doses of phentermine and topiramate for the treatment of obesity minimized side effects while maintained weight loss efficacy. The side effects were paraesthesia, taste changes and dry mouth. Weight loss induced by the combination was associated with improved BP through one and two years of treatment. Along with its needed effects, liraglutide (the active ingredient contained in Saxenda) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. Check with your doctor immediately if any of the following side effects occur while taking liraglutide: More common. Bladder paindiarrhea. dry mouth and tongue. bad taste in your mouth. constipation*. headaches*. mild allergic reaction *†. * To learn more about this side effect, see the “Side effects explained ...Jun 17, 2022 · The options have short-term side effects and long-term risks. However, when other weight loss medications and diets have not produced adequate results, doctors may consider surgery. Qsymia (phentermine and topiramate) is a weight loss medication used to help people who are overweight or obese, along with diet and exercise, to lose weight and keep the weight off. Common side effects of Qsymia include sensations of pricking, burning, tingling, or numbness of the skin; dizziness, blurred vision, fatigue, indigestion, urinary tract infections (UTIs), headache, nausea, back ... Jun 4, 2020 · This combination consists of fixed lower doses of phentermine and topiramate (3.75/23, 7/46, 11.25/69 and 15/92 mg) and is available in capsules under the brand name Qsymia. Common side effects of phentermine include nervousness, excitability, insomnia, headache, dry mouth, sweating, tachycardia, palpitations, nausea, constipation, and thirst. Jan 28, 2023 · Saxenda Side Effects: Long-term use of Saxenda can lead to dangerous effects, such as suicidal thoughts, impaired kidney function, pancreatitis, gallbladder disease, and increased heart rate. Short-Term Diet Pills Side Effects: Due to amphetamine-type effects, medications approved for short-term use can cause elevated heart rate and blood ... Qsymia works by reducing your appetite. In initial studies, Qsymia helped about 70% of adults lose at least 5% of their body weight after 1 year. Close to 50% of participants lost at least 10% of their body weight. When compared to Contrave, researchers found that Qsymia is usually the more effective option. 3.
trouble sleeping (insomnia) new or worse irritability acting aggressive, being angry, or violent acting on dangerous impulses an extreme increase in activity and talking (mania) other unusual changes in behavior or mood Serious eye problems which include:. Mandm jukebox candy dispenser
Apr 26, 2023 · The combination of phentermine and extended-release topiramate (Qsymia) was approved by the FDA in July 2012 as an adjunct to a reduced-calorie diet and exercise for long-term weight management in individuals with an initial BMI of 30 kg/m 2 or higher (obese) or 27 kg/m 2 or higher (overweight) with at least one weight-related comorbid ... Aug 22, 2021 · Indeed, in the wake of the fen-phen problems, the FDA rejected all drug company efforts to win approval for new weight-loss drugs between 1999 and 2012. Since then, it has approved four drugs for ... Phentermine alone is designed for short-term use only, as there are few long-term studies on its safety. One study observed that people experienced no significant side effects when they took ...Phentermine acts much like a stimulant and has many of the same side effects: increased heart palpitations. increased blood pressure. dizziness. Phentermine is known for being one part of Fen-Phen ...Jun 28, 2023 · Symptoms of severe phentermine side effects include ( 3 , 4 ): Chest pain. Pounding or irregular heartbeat, or fluttering in your chest. Lightheadedness or faintness. Shortness of breath, even with only mild exertion. Swelling in your legs, ankles, or feet (edema) Slurred speech or weakness on one side of your body. COMMON SIDE EFFECTS OF QSYMIA IN CHILDREN 12 YEARS OLD AND OLDER INCLUDE: Depression, dizziness, joint pain, fever, flu, and ankle sprain. POSSIBLE SIDE EFFECTS OF QSYMIA INCLUDE: Mood changes and trouble sleeping. Qsymia may cause depression or mood problems, and trouble sleeping. Tell your healthcare provider if symptoms occur. It does not making you lose than reaching the idea, it is a compound that can be able to lose weight. It also leads to by increasing their absorption of physical activity and improvement Qsymia Long Term Side EffectsAug 1, 2023 · tiredness and weakness. trouble thinking, speaking, or walking. upper right abdominal or stomach pain. weak or feeble pulse. weight gain. yellow eyes or skin. Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Feb 3, 2023 · Phentermine alone is designed for short-term use only, as there are few long-term studies on its safety. One study observed that people experienced no significant side effects when they took ... diarrhea. dry mouth and tongue. bad taste in your mouth. constipation*. headaches*. mild allergic reaction *†. * To learn more about this side effect, see the “Side effects explained ...PHEN is a noradrenergic drug, which is theorized to affect food intake primarily via the enhancement of norepinephrine release and possibly via the blockade of norepinephrine reuptake as well. It has been available in the US since 1959 for short-term (generally regarded as 12 weeks) treatment of obesity in dose range of 15 mg/day to 37.5 mg/day.These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about ....