How Does Phentermine Work?

Phentermine (Adipex-P) is a medication that is used in some conditions to aid in weight reduction by suppressing hunger. However, the adverse effects of phentermine (Adipex-P) may be potentially hazardous. There are substantial health concerns associated with being overweight or obese, which is why healthcare specialists suggest that you begin by attempting to achieve a healthy weight for your height and shape. Nonetheless, several drugs for weight reduction assist in accomplishing such aims.

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Before prescribing phentermine for weight reduction, your healthcare professional should ensure that you understand the medication’s possible negative effects. Continue reading for information about phentermine side effects that will assist you in determining whether this medicine is good for you.

How can phentermine help you lose weight?

Phentermine should be taken just for a brief period of time (less than 12 weeks at a time) to aid in weight reduction. It stimulates your sympathetic (“fight or flight”) nervous system, which is why it is referred to be a “sympathomimetic” or “stimulant” substance.

Phentermine may help suppress your appetite, which is why those who take it tend to eat less. This may result in an energy deficit (in which you burn more calories than you consume) and possible weight loss.

If you are obese (or overweight with health-related concerns) and have tried unsuccessfully to reduce weight by severe lifestyle modifications, phentermine may be a possibility for you.

However, because of the hazards connected with phentermine, the decision to begin treatment should be decided on an individual basis and should be extensively discussed with your healthcare professional.

How much weight can I expect to lose on phentermine?

This is dependent on your extra weight and your ability to change your diet while on phentermine.

Two studies explicitly address this issue:

According to a tiny research conducted in South Korea, about 86 percent of participants who were overweight or obese and took phentermine for 14 weeks lost more than 5% of their body weight.

Another South Korean research focused on persons who were obese (not overweight) and treated them with phentermine for a 12-week period. It was discovered that almost 96% of them dropped more than 5% of their body weight, while 62% of the same group lost more than 10% of their body weight.

Phentermine is sometimes used with another drug called topiramate. Qsymia (phentermine/topiramate) is a combination drug with a longer duration of approval. Over the course of a year, 75% of participants receiving phentermine/topiramate lost at least 5% of their body weight, compared to 23% of those taking a placebo.

What is the usual phentermine dose?

A normal daily dosage of phentermine is 37.5 mg (one tablet). This may be administered in a single dosage or in two doses (one in the morning and one at night). Recently, a new phentermine formulation (Lomaira) became available in lower 8 mg dosages that may be used up to three times daily.

Due to the possibility of dangers and side effects, you should attempt to stay on the lowest effective dosage of phentermine for the shortest length of time feasible (the lowest dose that allows you to successfully lose weight).

Is phentermine as addictive as fen-phen?

Phentermine is one of the two drugs in the off-label combo “fen-phen” of fenfluramine and phentermine. Fenfluramine, like phentermine, stimulates the sympathetic nervous system. However, it has extra effects on serotonin (a neurotransmitter in the brain), resulting in further appetite suppression.

Unfortunately, it has been shown that combining these two drugs may result in serious adverse effects, including damage to your heart valves. In 1997, the FDA advised that fenfluramine (and its “sister” medicine, dexfenfluramine) be withdrawn from the market due to these adverse effects. Fortunately, no occurrences of heart valve damage have been observed in association with phentermine alone.

Why is phentermine classified as a’scheduled’ medication with Xanax, Ativan, and Ambien?

Phentermine has the potential for abuse, which is why it is a scheduled substance. It operates similarly to amphetamines, which are illicit and recreationally used drugs.

Due to the possibility of abuse, stringent monitoring and other safety precautions are utilized to prevent individuals from receiving phentermine without a valid prescription.

Phentermine HCL Dosage

Take this drug by mouth as instructed by your doctor, often once daily, one hour before or two hours after breakfast. Your doctor may change your dosage to a little amount up to three times daily if necessary. Adhere according to your doctor’s recommendations. Taking this drug late in the day may result in sleep disturbances (insomnia).

When using sustained-release capsules, the dosage is typically taken once daily before breakfast or at least 10 to 14 hours before night. Consume the drug in its entirety. Sustained-release capsules should not be crushed or chewed. This might result in the complete release of the medicine, raising the likelihood of negative effects.

If you are taking oral disintegrating pills, the dosage is typically taken once daily in the morning, with or without meals. To begin, dry your hands well before handling the pill. Place the dosage on the tongue and wait for it to dissolve before swallowing it with or without water.

Dosage and duration of treatment are determined by your medical condition and response to therapy. Your doctor will modify the dosage to the level that is most effective for you. Consult your doctor about the dangers and advantages of phentermine therapy, as well as the duration of treatment. To get the most benefit, take this drug on a consistent basis, precisely as recommended, and for the duration suggested by your doctor. Take it at the same time(s) each day to aid with memory.

If you abruptly discontinue use of this drug, you may have withdrawal symptoms (such as depression, severe tiredness). To assist avoid withdrawal, your doctor may gradually decrease your dosage. Withdrawal is more common if you’ve been taking phentermine for an extended period of time or at a high dosage. Inform your doctor or pharmacist immediately if you have withdrawal symptoms.