What are the dangers of phentermine?
This medicine may cause some people to become dizzy, lightheaded, or less alert than they are normally. Make sure you know how you react to this medicine before you drive, use machines, or do anything else that could be dangerous if you are dizzy or not alert. This medicine may affect blood sugar levels.
Phentermine alone, however, has been used for decades and appears to be a safe and effective weight loss medication when used in the short-term in healthy individuals. One study found that phentermine significantly reduced weight without raising blood pressure or causing other heart problems.
Phentermine should only be used for short-term use (less than 12 weeks at a time) to help with weight loss.
Phentermine Side Effects
You may also experience constipation, diarrhea or vomiting. More serious but rare side effects include increased blood pressure, palpitations of the heart, dizziness, restlessness, tremors, insomnia, shortness of breath, chest pains, severe skin problems and swelling in the legs and ankles.
Do not use phentermine if you are pregnant or breast-feeding a baby. You should not use phentermine if you have glaucoma, overactive thyroid, severe heart problems, uncontrolled high blood pressure, advanced coronary artery disease, extreme agitation, or a history of drug abuse.
The combined drug is approved for long-term use. Phentermine is approved for use for up to 12 weeks. But weight management can take time. So some health care providers might order it for longer use.
Phentermine is a prescription weight loss medication. It is an appetite suppressant. Individuals taking phentermine lose weight because they are less hungry and thus consume fewer calories. Phentermine does not cause you to burn fat and does not affect your metabolism.
Phentermine takes about three to five days to build up in the system (to what is called a steady state ), which is why some people report not feeling its full effect until being on it for several days.
Phentermine (Adipex-P) is FDA-approved to help some people lose weight. It works by lowering your appetite. Taking phentermine can cause false positive urine test results for amphetamines.
The main cardiovascular adverse effects are palpitations, mild tachycardia and elevated blood pressure. Cardiovascular contraindications for the use of phentermine are a history of coronary artery disease, stroke, arrhythmias, congestive heart failure and uncontrolled hypertension.
What is like phentermine over the counter?
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TAKE-HOME MESSAGE
Longer-term use, >12 months, was associated with significantly more weight loss (7.4%) than a duration of use < 3months and a risk of CVD or death comparable with that associated with a shorter-term use.
Phentermine starts to work very quickly after taking an initial dose. Phentermine medication gets absorbed through your gastrointestinal tract. It will reach its peak concentrations in your blood after three to 4.4 hours. You should start feeling the effects in around four hours.
Your diet should include foods with plenty of fiber, protein, fruits, vegetable and healthy fats; combined these will all work simultaneously to help your body burn fat, build muscle, limit swelling and lose weight quickly with phentermine.
Phentermine which has been in clinical use for more than 50 years has not been linked convincingly to either serum enzyme elevations during therapy or to instances of clinically apparent liver injury.
Phentermine is a rare cause of drug-induced acute interstitial nephritis (AIN). The mainstay of treatment in AIN removal of the offending agent and though evidence is mixed, steroid therapy should also be considered. The majority of patients with AIN have complete or partial renal recovery even when severe.
Stopping phentermine
Do not suddenly stop using phentermine. Suddenly stopping phentermine treatment can cause seizures. It can also cause withdrawal symptoms.
6. Constipation or diarrhea. Phentermine may cause constipation. But there have also been reports of diarrhea in some people taking it.
This drop in metabolism persists for a LONG time even after you start eating normally again. And it is this drop in metabolism which causes you to gain weight once you stop taking the medication.
If you're wondering how much caffeine is in phentermine, the answer is zero. Phentermine doesn't have caffeine in it, but like caffeine, it's a stimulant, and has many of the same side effects as caffeine. RELATED: Is phentermine for weight loss safe?
Why am I still hungry after taking phentermine?
Some patients become hungrier around 3-4 months because they stop following the diet as closely and they start eating foods that stimulate the appetite. Phentermine is still working, but eating the wrong foods can stimulate your appetite more than phentermine will suppress it.
The bottom line is that phentermine works in just three to 4.4 hours. However, it may take a couple of weeks before you start to notice that you're losing weight. To see your results as quickly as possible, you should try to minimize your consumption of carbohydrates, stay hydrated, and stay as active as possible.
This can make it difficult to stick to your weight loss goals. Phentermine may help you overcome this by decreasing fatigue and increasing energy levels. One of the main reasons people use Phentermine for weight loss is because it reduces hunger.
The Food and Drug Administration (FDA) limited treatment to 12 weeks or less.
“Weight Loss or Brain Loss?”: Long Term Use of Phentermine Possibly Increases Risk for Ischemic Stroke.