How long do Appetite Suppressants take to work? (All Explained)

  • By: jacob foxx
  • Date: April 13, 2023
How long do Appetite Suppressants take to work?

When it comes to weight loss, many people turn to diet pills as a solution. However, it’s important to keep in mind that different diet drugs take varying lengths of time to become effective.

Generally, most diet pills show results after 3-4 months, which may seem like a long time for those seeking immediate results.

An anorectic substance, which suppresses appetite, typically takes an estimated amount of time to work.

It’s crucial to give these drugs time to take effect, and to follow the recommended dosage and usage instructions.

How long does it take for appetite suppressants to kick in?

In the world of pharmacology, appetite suppressants are a hot topic, as they provide an effective means for reducing dietary intake and promoting weight loss.

However, not all suppressants are created equal their pharmacokinetics can vary greatly.

Luckily, research has been conducted to better understand these differences, and results for factors such as absorption, bioavailability, and half-life are available for reference.

This information can be crucial in developing effective treatment plans for those seeking to control their appetite and improve their overall health.

With careful consideration and the aid of accurate data, appetite suppressants can prove to be a valuable tool in the fight against obesity and its related health risks.

1. Phentermine

Phentermine is a powerful weight loss drug that acts by manipulating stress hormones to reduce hunger.

Its maximum bioavailability of 15 mg tablets can be attained after six hours, and the drug remains in the body for 2-3 days, thanks to its terminal half-life of 19–24 hours.

Although small weight changes can be noticeable after a few weeks, significant results are expected to appear after 2.5 to 3 months of continuous use.

Over time, phentermine is capable of helping patients lose about 3–5% of their initial weight.

With its demonstrated effectiveness and a proven track record, phentermine remains an excellent option for individuals seeking substantial weight loss.

2. Topiramate

Topiramate has emerged as an effective medication for those looking to suppress their appetite.

Often coupled with other anorectic substances such as phentermine, it has helped many people achieve their weight loss goals.

However, it should be noted that it takes between 2-3 hours for topiramate to be fully absorbed into the body via the gastrointestinal tract.

In addition, the medication has a half-life that ranges between 20-30 hours, and it takes almost two days to be eliminated from the body.

These factors should be kept in mind while taking topiramate-containing medicines.

Nonetheless, studies have shown that most individuals experience visible differences in their body mass after four months of using this medication.

3. Sibutramine

Sibutramine is a medication that is commonly used for weight loss. It is absorbed in the gut and reaches its maximum bioavailability within 1.2 hours of intake.

Despite its appetite suppressant properties, sibutramine stays in the body for a short duration because of its 1.1-hour half-life.

Although the effects of sibutramine may take time to appear, weight loss can be seen within a month, with reductions of up to 2 kg or even less.

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In addition, a 5% weight reduction can be expected in just three months of diet therapy with sibutramine.

With these facts in mind, dietitians and healthcare professionals may want to consider recommending sibutramine as an effective weight loss tool for their patients.

4. Diethylpropion

Diethylpropion is a sympathomimetic amine that functions similarly to phentermine, which is known for suppressing appetite through its neural stimulation abilities.

One key factor to note here is its absorption into the bloodstream, which is maximized approximately two hours after administration.

While it has a shorter half-life of 4-6 hours compared to phentermine, diethylpropion still holds promise for weight reduction.

Physicians prescribe Diethylpropion for four weeks’ duration, expecting at least a 4-pound weight loss during that time.

Of course, potential side effects may occur, so it’s essential to keep an eye out for any concerning symptoms. Despite potential side effects, diethylpropion remains a valuable weight-reduction tool for patients who receive it.

5. Liraglutide

Liraglutide, a lipopeptide, is known for its efficacy in weight loss and the management of diabetes.

While it may take a while for it to reach its peak concentration in blood plasma, its biological half-life ensures that it stays in the body for an extended period.

Studies have shown that with consistent use, Liraglutide can lead to a significant reduction in weight over several months.

In fact, after just four months, a 4.7% weight reduction can be seen, while up to 7% weight loss has been recorded after a year of use.

Liraglutide’s remarkable impact on weight loss and diabetes management make it a popular choice for patients in need.

Looking for a safe but effective Appetite Suppressant?

While suppressants may seem like a quick fix for weight loss, it’s important to understand the potential side effects that come with their stimulatory nature.

Palpitations, nausea, dry mouth, an increased heart rate, stroke, and heart arrhythmias are all possible risks.

As fitness experts with years of experience, we stand behind a safer recommendation for successful dieting.

Our approach involves creating a sustainable lifestyle change that incorporates a balanced diet and regular exercise.

This is not only a more effective long-term solution but also avoids the potential dangers of suppressants.

In the end, prioritizing your health is always worth it when it comes to achieving your fitness goals.

Legal Safe Anti Suppressant – PhenQ

PhenQ is a powerful dietary supplement that utilizes an array of natural, plant-based substances to suppress appetite and promote balanced performance.

Unlike other appetite suppressants, PhenQ contains anorectic amino acids, vitamins, and fiber extracts from capsicum and cactus, which offer a safe and benign solution for those looking to achieve their weight-loss goals.

PhenQ has been ranked among the best appetite suppressants on the market, thanks to its ability to help individuals achieve their desired physiques without causing any severe side effects.

If you’re looking for an effective and safe solution to your weight-loss needs, look no further than PhenQ.

Traditional appetite suppressants vs. PhenQ

PhenQ is a revolutionary weight loss solution designed to eradicate the struggles of hunger, excessive fat buildup, and slow fat consumption.

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Its holistic approach promotes healthy weight loss and suppresses the hunger hormone ghrelin while also avoiding stimulation of the nervous system.

PhenQ’s unique thermogenesis technology enhances bioreactions to accelerate fat metabolism. Reports indicate that users can expect a 5–6% weight loss within a month.

Perhaps most impressively, L-carnitine included in the formula also enhances cognitive function and eases stress through the weight loss process.

PhenQ is a game-changer in the world of diet supplements, giving users a safer and more effective way to lose weight while feeling great.

What makes PhenQ the best of all? The answer is its ingredients

PhenQ is a dietary supplement that has been gaining popularity in the weight loss world.

With ingredients such as L-carnitine fumarate, niacin, caffeine, capsimax powder, and chromium picolinate, it is no wonder why.

Additionally, its α-Lacys Reset boosts fat consumption, reduces production, and suppresses appetite.

Cysteine also plays a role in reducing hunger hormones, while caffeine provides an energy boost and speeds up metabolism.

All of these ingredients are vegan-friendly and come from extracts of capsicum, piperine, and nopal cactus for their thermogenic and anorectic properties.

To top it off, PhenQ offers financial incentives and a 60-day money-back guarantee. 

click to find out more about PhenQ


When trying to lose weight, appetite suppressants can be a useful tool to help control food cravings and reduce calorie intake.

However, it’s important to understand that not all suppressants are created equal. Different products are absorbed and excreted differently, which can impact their efficacy and potential side effects.

Before choosing a supplement, it’s essential to consider how long it remains effective and what your fitness goals are.

Additionally, it’s essential to weigh the potential side effects against the potential benefits to ensure you’re making a safe and informed decision for your health.

I'm Jacob Foxx, a proud native of the outskirts of Chicago, Illinois. I was enamored with the expansive Star Trek universe and its promise of cutting-edge technology and space travel from a young age. This early fascination with science fiction sparked my imagination and laid the foundation for my writing career. Alongside my love for the cosmos, I developed a passion for fitness in my formative years.

This dual interest in the world of tomorrow and the pursuit of physical health has greatly informed my writing, allowing me to explore themes of human potential and the future of our species. As an author, I strive to blend these passions into compelling narratives that inspire readers to dream and to push their own boundaries.

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