Phentermine is an anorectic. These medications aid in appetite suppression and weight reduction. Phentermine (Adipex-P, Lomaira) is an orally administered prescription medicine. Additionally, it is offered in conjunction with another medication called topiramate under the brand name Qsymia.

Over-the-counter Phentermine weight loss supplements are short-term treatment option for those who are overweight or obese who are actively attempting to reduce weight via diet and exercise. It is transitory, since its efficacy diminishes after three to six weeks.

What is phentermine and how does it work?

Phentermine is the brand name for a prescription-only weight reduction medication, or more accurately, the best FDA-approved weight loss medication accessible only with a doctor’s prescription in the United States. Yes, Phentermine works great when taken as prescribed. It is a weight-loss medication that is used to treat obesity and obesity. Phentermine is a stimulant similar to methamphetamine that activates particular areas of the brain in order to suppress appetite and increase energy levels. However, you may be wondering why.

As previously stated, Phentermine is intended to be taken in conjunction with a balanced diet and at least five days of weekly exercise. Used in any other manner would have the opposite of the desired good benefits. After all, Phentermine is not a miracle drug that instantly produces effects. By lowering hunger and increasing energy, you will naturally feel better and be able to stick to your food plan and exercise five times a week. Unfortunately, Phentermine does have certain undesirable side effects that you should avoid. Let us examine the psychological consequences of our actions.

Phentermine’s possible adverse effects

As with any other medication, Phentermine has the potential to induce some adverse effects. These adverse effects are most often associated with Phentermine abuse or misuse, which is why it is critical to strictly adhere to your doctor’s recommendations about Phentermine usage. You should not tamper with the Phentermine dose on your own. Your doctor is the only one who has the authority to adjust the dose.

All of this is to imply that once Phentermine’s adverse effects manifest, they might quickly create pain in your life. Dry mouth, gastrointestinal problems such as diarrhea, constipation, nausea, and vomiting, sleeplessness, hypertension, anxiousness, irritability, and even addiction are all possible adverse effects. Addiction is possibly the most perilous of all the adverse effects.

Phentermine is intended to be taken for a brief length of time – around 12 weeks – exceeding that time limit or tampering with the dose on your own may quickly result in addiction. When you stop taking Phentermine, you run the risk of having withdrawal symptoms such as weight gain, irritability, and sleeplessness. To prevent suffering any adverse effects, we urge all of our readers to strictly adhere to the specified dose and follow the doctor’s instructions.

Risks if taken before to becoming pregnant

Phentermine should have no influence on your capacity to carry a healthy baby to term if you took it prior to pregnancy. All traces of phentermine should be eliminated from your system. Even if you took your last dosage a week before conception, your pregnancy should be unaffected.

Mother’s Risks

According to the Drugs website, phentermine should be taken for a brief amount of time, such as a few weeks. Long-term usage of excessive doses of phentermine may result in serious skin issues, sleep difficulties, personality changes, hyperactivity, and unpleasant moods. When used with other diet drugs such as fenfluramine, phentermine may induce pulmonary hypertension, an uncommon but severe lung condition. As a result, women who are on phentermine should see their physician before taking any additional diet drugs.

Baby’s Risks

There is less evidence available on the dangers to infants exposed to phentermine during pregnancy. Two published investigations, on the other hand, do not indicate an increased risk of birth abnormalities or other bad outcomes. K.A. Johnson’s 1998 article in the journal “Teratology” on 100 women who took Fen Phen during early pregnancy found no evidence of an increased frequency of physical defects. Another research, conducted by K.L. Jones and published in 2002 in the journal “Teratology,” found no increase in the prevalence of serious congenital defects in 84 children of mothers who took Fen Phen throughout the first trimester of pregnancy. Due to the limited number of exposed pregnancies in these publications, authors cannot conclusively rule out the potential of bad outcomes in newborns exposed to phentermine. Pregnant women are recommended to see their doctor about food and weight reduction choices prior to beginning a program.

Weight Loss Risks

Although some dangerous medical disorders, such as gestational diabetes and hypertension, are more prevalent in obese women during pregnancy, it is not suggested that women lose weight during pregnancy, as the Organization of Teratology Information Services recommends. The developing fetus need enough nourishment to develop normally, and dieting might deprive the newborn of essential nutrients.


Phentermine has been linked to a variety of adverse effects, including dry mouth, foul taste, diarrhea, constipation, and vomiting. According to MedlinePlus, these effects may be prevented to a significant extent by taking phentermine with meals. Increased blood pressure, heart palpitations, dizziness, tremor, shortness of breath, and chest discomfort are all severe side effects that need emergency medical attention.

Warnings About Phentermine During Pregnancy

Administration of a dosage seven times the maximum human dose (MHD) to rats during late gestation showed no deleterious effects on the mothers or offspring. There is no information available on teratogenicity. Pregnancy is not suggested for weight reduction owing to the risk of fetal damage. There is no controlled data on pregnancy in humans.

AU TGA pregnancy category B2:

Drugs that have been administered to a small number of pregnant women and women of reproductive age without an increase in the incidence of malformations or other adverse effects on the human baby. Although animal studies are insufficient or may be deficient, current data indicate no indication of an elevated risk of embryonic harm.

US FDA pregnancy category X:

Animal or human studies have demonstrated fetal abnormalities, and/or there is positive evidence of human fetal risk based on adverse reaction data from investigational or marketing experience, and the risks associated with using the drug during pregnancy clearly outweigh the potential benefits.