Phentermine is a medication used for a limited time to help overweight and obese people lose weight faster. It belongs to a class of drug known as anorectics, that works by reducing appetite. Phentermine should be used alongside exercise and supervised diet programs.
Uses of Phentermine
Phentermine is an FDA-approved treatment for obesity. It is effective especially among people with weight-related issues and obese or overweight people with risk factors like high cholesterol, high blood pressure, and diabetes. It is medically used for a short-term period to promote weight loss when calorie reduction and exercise are not enough. This drug is effective for treating obesity with a BMI of 30 kg/m2 or 27 kg/ m2 with weight-related comorbidity.
How does it work?
As an anorectic drug, Phentermine has an appetite suppressant effect. It works by stimulating the sympathetic nervous system or the “fight-or-flight system”. Activating the sympathetic nervous system suppresses the appetite. This results in an energy deficit and eventually weight loss. When there is a calorie deficit, your body burns more calories than what you consume. Phentermine also releases organic chemicals and hormones involved in visceral functions that help the fat cells to break down stored fats.
How much Phentermine to take?
Take Phentermine by mouth as directed by your doctor. The recommended dose depends on your doctor’s prescription. Your doctor will adjust your dose and will find the best dose for you.
- The usual adult dose for obesity is 8 mg taken 3 times a day 30 minutes before meals. Your doctor may also prescribe you 15 to 37.5 mg tablet to be taken orally once a day. Take it in the morning 1 hour before breakfast or 1 to 2 hours after breakfast.
- The recommended dose for those 17 years and older is one tablet of 15 to 37.5 mg per day 30 minutes before breakfast. You can also take it in three divided doses of 8 mg 3 times a day. Take it 30 minutes before meals.
In order to get the best results, take this regularly according to your doctor’s instructions. Use it for a few weeks in conjunction with exercise, calorie restriction, and behavioral change. For a missed dose, take it as soon as you can. Skip the missed dose if it’s late in the day. Do not double your dose to make up for the missed one.
Tips for taking Phentermine safely and effectively
- Phentermine is in Pregnancy Category X. It is prohibited for women during pregnancy. The use of this drug during pregnancy can cause fatal harm to the unborn baby.
- This medication is generally recommended for short-term use only, at least 3 to 6 weeks.
- Avoid hazardous activities like driving until you know how this medication will affect you.
- Phentermine can aid with weight loss, but it may produce side effects such as high blood pressure, shortness of breath, and chest pain. Because of this, it may not be recommended for people with heart-related problems.
- Another notable side effect of this medication includes dry mouth, dizziness, nausea, vomiting, constipation, or diarrhea. If these side effects are severe or do not go away, inform your doctor. In case you have noticed any unusual problems during your treatment with Phentermine, discontinue the medication and contact your doctor as soon as possible.
- The use of alcoholic beverages during treatment can cause side effects.
- Before you use this weight loss aid, tell your doctor what prescription and nonprescription medications, herbal products, and nutritional supplements you are taking. Phentermine can cause severe drug interactions which could increase your risk of adverse effects. Taking this drug with MAO inhibitors and other appetite-suppressant drugs may also result in serious side effects.