How to use Phentermine HCL. Take this medication by mouth as directed by your doctor, usually once a day, 1 hour before breakfast or 1 to 2 hours after breakfast. If needed, your doctor may adjust your dose to take a small dose up to 3 times a day. Carefully follow your doctor’s instructions.
How many hours does phentermine last?
How Long Does Adipex Last? Adipex has a half-life of about 20 hours, which is the time it takes for half of the dosage to be metabolized by the liver or excreted unchanged in the urine. It takes five to six half-lives for Adipex to be completely eliminated from your system.
Can you take 2 phentermine a day?
Do not take two doses at one time. Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. An overdose of phentermine can be fatal.
Do you have to take phentermine at the same time every day?
Take phentermine and topiramate at around the same time every day. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand.
Can you overdose on Phentermine?
Too much phentermine can cause the heart to beat irregularly and the body to overheat until the person collapses. Smith’s reported heart disease may have put him at higher risk for deadly side effects of the drug.
Is it OK to skip a day of phentermine?
Take the medicine as soon as you can, but skip the missed dose if it is late in the day. Do not take two doses at one time.
How much weight can you lose in a month on phentermine?
Several clinical studies have proven that phentermine can boost fat loss. The expected average weight loss with phentermine use is 5% of your initial body weight. Yet, over 12 weeks, it can be as high as 10%. This equates to a weight loss of 10–20 pounds (4.5–9 kg) for a 200 pound (90.7 kg) person ( 8 ).
Is phentermine a speed?
There is a potential for misuse with phentermine, which is why it is a scheduled drug. It works in a similar way to amphetamines (like methamphetamine or “speed”) and cocaine, which are drugs that people use illegally and recreationally.
Can you take phentermine 37.5 mg twice a day?
Typical starting dosage: One 37.5-mg capsule each day. Take it in the morning before breakfast, or 1–2 hours after breakfast. Maximum dosage: 37.5 mg per day.
Why is Phentermine making me tired?
Fatigue or tiredness can come as a result of sleepless nights or following a period of over-stimulation, however, adverse effects of phentermine also include drowsiness, fatigue, and reduced energy levels.
Has anyone died from phentermine?
Forty-one (0.3 percent) of 13,972 phentermine users experienced a major adverse event (36 cardiovascular events; 5 deaths), but none of these was among the long-term users.
What does phentermine 37.5 mg do?
It stimulates the central nervous system (nerves and brain), which increases your heart rate and blood pressure and decreases your appetite. Phentermine is used together with diet and exercise to treat obesity, especially in people with risk factors such as high blood pressure, high cholesterol, or diabetes.
Does phentermine affect your brain?
Summary: Users of widely prescribed diet pills may suffer irreversible loss of brain serotonin nerve terminals, possibly resulting in symptoms of anxiety, depression, cognitive and sleep problems, suggests the first author of a newly published report on fenfluramine side effects.
What is the highest mg of phentermine you can take?
The recommended maximum dosage of Phentermine is 15 mg daily for patients with severe renal impairment (eGFR 15 to 29 mL/min/1.73m2).
Can phentermine cause weight gain?
If you find yourself gaining weight while taking phentermine see your doctor. Phentermine should be used alongside dietary changes, exercise, and behavioral modification as discussed with your doctor.
Does phentermine show up in a drug test?
Taking phentermine can result in a false positive urine test for amphetamines.