For treatment of obesity: For oral dosage form (capsules): Adults and children 17 years of age and older—15 to 30 milligrams (mg) once a day, taken at approximately 2 hours after breakfast. Children 16 years of age and younger—Use is not recommended.
Can I take more than 37.5 mg of phentermine a day?
Take it in the morning before breakfast, or 1–2 hours after breakfast. Maximum dosage: 37.5 mg per day.
What is the maximum amount of phentermine you can take?
If patients do not lose 3% of their body weight after 12 weeks, the dosage should be increased to 11.25/69 mg once daily for another 14 days before increasing to the maximum dosage of 15/92 mg per day.
How long can you take phentermine 37.5 mg?
Adipex (phentermine) is a prescription medication given to assist people with weight loss. It works by decreasing the appetite and is usually prescribed for three to six weeks (though can be used for up to 12 weeks) to people who are exercising and eating a low-calorie diet.
What happens if you take 2 phentermine in one day?
An overdose of phentermine can be fatal.
Overdose symptoms may include confusion, panic, hallucinations, extreme restlessness, nausea, vomiting, diarrhea, stomach cramps, feeling tired or depressed, irregular heartbeats, weak pulse, seizure, or slow breathing (breathing may stop).
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.
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.
What is the strongest phentermine pill?
Phentermine and topiramate — sold under the brand name Qsymia — is a combination medication used for weight loss ( 11 , 21 ). This medication is available in four doses, ranging in strength from 3.75 to 15 mg of phentermine and 23 to 92 mg of topiramate.
Does phentermine show up in a drug test?
Taking phentermine can result in a false positive urine test for amphetamines.
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.
Has phentermine killed anyone?
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.
How long does it take to start losing weight on phentermine?
Most weight loss takes place within the first six months of using the medication. Since ADIPEX can be addictive, it’s possible to develop a drug dependence or even stimulant use disorder with prolonged and unsupervised use of this medication.
How should I take Phentermine for best results?
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.
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.
Does phentermine build up in your system?
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.
Can you take phentermine longer than 3 months?
The authors concluded that phentermine is safe and effective for longer-term use—that is, >3 months—for weight loss in low-risk individuals.