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lomaira

Generic
Used for Weight Loss
Used for Weight Loss

Lomaira (phentermine) is a prescription appetite suppressant. It's used to help with weight loss and is approved for people ages 17 years and older. Lomaira (phentermine) is taken by mouth, typically three times per day. This medication is shorter-acting compared to Adipex-P (phentermine), which is taken once daily. Common side effects include dry mouth, trouble sleeping, and headache. You should avoid drinking alcohol while taking Lomaira (phentermine) because doing so can lead to serious risks, such as dizziness and heart problems.

Last reviewed on March 4, 2024
Lomaira (phentermine) is a controlled substance, which means that it's more likely to be misused or cause dependence. There are federal and state laws that limit the amount of medication that can be prescribed or dispensed within a certain period of time.
basics-icon

What is Lomaira (phentermine)?

What is Lomaira (phentermine) used for?

How Lomaira (phentermine) works

Lomaira (phentermine) is a sympathomimetic (stimulant). The exact way it works to help with weight loss isn't well understood. But it's thought to work by lowering your appetite and causing you to feel less hungry.

Are you looking for information on phentermine (Adipex-P) instead?

Drug Facts

Common BrandsLomaira
Drug ClassSympathomimetic
Controlled Substance ClassificationSchedule IV
Generic StatusLower-cost generic available
AvailabilityPrescription only

More on Lomaira (phentermine) essentials

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What are the risks and warnings for Lomaira (phentermine)?

Lomaira (phentermine) can cause some serious health issues. This risk may be even higher for certain groups. If this worries you, talk to your doctor or pharmacist about other options.

risk-warning

Not safe to combined with other weight loss medications

There isn't enough information to know whether it's safe to take Lomaira (phentermine) along with other medications for weight loss, including ones found over-the-counter. Don't take Lomaira (phentermine) with any other weight loss medication without first speaking with your primary care provider. Talk with your care team if you have more questions about your treatment plan.

risk-warning

Phentermine not working well

Lomaira (phentermine) might not continue to work well after a while, even for people who've experienced good results when they first started treatment. This is called tolerance. Raising the dose of Lomaira (phentermine) won't help and isn't safe because of the risk for serious side effects. Let you primary care provider know if you've noticed weight gain or your appetite returning after you've been taking Lomaira (phentermine). They'll need to recommend other treatment options for you.

risk-warning

Risk of misuse and dependence

  • Risk factors: Taking more Lomaira (phentermine) than prescribed

    Similar to other stimulants, Lomaira (phentermine) has a risk of misuse and for causing dependence. To lower the risk of serious side effects from taking too much medication and the risk of dependence, your primary care provider will typically only prescribe a limited amount and quantity at a time. Take Lomaira (phentermine) exactly as prescribed by your primary care provider. This medication is only meant for short-term treatment only. Talk with your care team to learn more about long-term weight management options.

    risk-warning

    Trouble concentrating or problem with coordination

    • Risk factors: Drinking alcohol

      Don't drive or do anything that needs a lot of focus and attention after starting Lomaira (phentermine) until you know how this medication affects you. Some people experience trouble concentrating, dizziness, tremor and other side effects that can make it dangerous for you to drive. Let your care team know right away if you have these side effects, and especially if they don't get better with time. They might need to ask you to consider other treatment options instead.

      risk-warning

      Heart and lung problems

      In the past, there were rare, life-threatening cases of pulmonary hypertension (high blood pressure in the lungs) and heart valve problems in people taking "fen-phen" (fenfluramine / phentermine), a previously used combination weight management medication. Although it's unlikely for these problems to happen while taking Lomaira (phentermine) by itself, these risks might still be possible. Tell your primary care provider right away if you have any symptoms of lung problems or heart valve problems, such as chest pain, shortness of breath, swollen feet, or dizziness.

      risk-warning

      Risk of high blood pressure

      Let your primary care provider (PCP) know if you have high blood pressure, even if your condition is well-controlled by medications. Taking Lomaira (phentermine) might raise your risk for high blood pressure so your care team might ask you to check you blood pressure more often during treatment. Let your PCP know if you notice your blood pressure rising after starting treatment because they might need to adjust your medications.

      risk-warning

      Risk of low blood sugar in people with diabetes

      • Risk factors: Taking insulin or sulfonylureas

        People with diabetes who are taking medications that lower blood sugar, such as insulin or sulfonylureas like glipizide, are at higher risk for severely low blood sugar during treatment with Lomaira (phentermine). This can happen due to changes in eating habits and appetite with Lomaira (phentermine). Your diabetes care team might need to adjust the dose of your blood sugar medications after you start Lomaira (phentermine).

        Always keep emergency glucose tablets or hard candy with you in case your blood sugar drops too low. If you experience symptoms of low blood sugar, such as feeling faint, shaking, and sweating, check and treat your low blood sugar levels right away. If your symptoms don't improve, call 911.

        basics-icon

        What are the side effects of Lomaira (phentermine)?

        The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.

        Common Side Effects

        • Dry mouth
        • Headache
        • Tremor
        • Constipation
        • Diarrhea
        • High blood pressure
        • Fast heart rate
        • Difficulty sleeping

        Other Side Effects

        • Dizziness
        • Restlessness
        • Behavioral changes
        • Erectile dysfunction
        • Changes in sex drive

        Serious Side Effects

        Contact your healthcare provider immediately if you experience any of the following.
        • Heart or lung disease: dizziness, chest pain, leg or ankle swelling, feeling of heart racing or pounding (palpitations), inability to exercise, fatigue, short of breath
        • Severely high blood pressure: severe headache, difficulty breathing, chest pain, blurry vision, confusion
        • Low blood sugar (for people who are taking certain diabetes medications): feeling faint, shaking, sweating, nervousness, anxious, confused, irritable, feeling very hungry

        Source: DailyMed

        The following side effects have also been reported

        Side effects that you should report to your care team as soon as possible:

        Side effects that usually do not require medical attention (report to your care team if they continue or are bothersome):

        pros-and-cons

        Pros and cons of Lomaira (phentermine)

        thumbs-up

        Pros

        Many people lose about 5% to 10% of body weight

        Makes you feel less hungry soon after you start treatment

        Taken by mouth

        thumbs-down

        Cons

        Taken multiple times a day

        Harder to fall asleep if taken too close to bedtime

        Short-term treatment only

        pharmacist-tips

        Pharmacist tips for Lomaira (phentermine)

        pharmacist
        • Avoid driving the first few days after you start Lomaira (phentermine) and after dose changes until you know how this medication affects you.

          • Lomaira (phentermine) works best to help you lose weight if you take it with a healthy diet and regular exercise. Talk with your PCP if you have questions about how to plan your meals and what kind of exercise is appropriate for you.

            • If you have diabetes and are taking medications that lower your blood sugar, such as insulin or glipizide, let your primary care provider (PCP) know. Taking Lomaira (phentermine) will likely make you eat less, which means you're at higher risk of dangerously low blood sugar. Your primary care provider (PCP) might need to adjust the dose of blood sugar medications.

              • Lomaira (phentermine) must be avoided during pregnancy. Weight loss during pregnancy can cause serious harm to unborn babies. If you're pregnant or thinking of getting pregnant, don't use Lomaira (phentermine). Speak with your primary care provider about how to maintain a healthy weight during pregnancy.

                • It's recommended to avoid breastfeeding while taking Lomaira (phentermine) because there's a potential risk of harm to nursing babies. Lomaira (phentermine) is structurally similar to amphetamines, which are known to pass into breast milk and can have potentially serious risks (e.g., changes in blood pressure and heart rate, growth problems) to breastfed babies.

                  • Lomaira (phentermine) interacts with several medications, including monoamine oxidase inhibitors (MAOIs). Tell your primary care provider about all the medications you're taking before you start Lomaira (phentermine) as well as medications you plan to take during treatment. They can make sure your medications are safe for you.

                    More on Lomaira (phentermine) tips

                    faqs

                    Frequently asked questions about Lomaira (phentermine)

                    How much weight can you lose on Lomaira (phentermine)?
                    Based on results from a few studies, people who take Lomaira (phentermine) lose about 5% to 10% of their body weight. But the exact amount of weight you'll lose and how quickly you'll lose it depends on different factors, such as how much extra weight you have before starting treatment and your exercise routine and diet choices during treatment. Talk to your primary care provider if you have more questions about what to expect with Lomaira (phentermine).
                    How long does it take for Lomaira (phentermine) to work?
                    You might start to feel less hungry soon after you start taking Lomaira (phentermine). But typically, it might take about 2 weeks before you see noticeable results. Talk to your primary care provider if you're not sure whether Lomaira (phentermine) is working for you.
                    How long can you take Lomaira (phentermine)?
                    Lomaira (phentermine) is meant for short-term treatment only. It's usually only taken for a few weeks to few months at a time. Your medical team will help decide how long you should take this medication. They can also talk with you about longer-term weight loss options.
                    Can you drink alcohol with Lomaira (phentermine)?
                    It's recommended to avoid alcohol while taking Lomaira (phentermine) because it can worsen certain side effects of the medication, such as dizziness and trouble sleeping. In addition, drinking alcohol can also affect how much weight you lose from Lomaira (phentermine). If you've been drinking alcohol regularly and it's difficult for you to stop, talk with your primary care provider. They can point you to resources to help you stop or tell you about other options for weight loss.
                    Is Lomaira the same as phentermine?
                    Yes. Lomaira is a brand name medication that contains phentermine as the active ingredient. Lomaira is a shorter-acting form of phentermine that's taken three times per day. There are other longer-acting forms of phentermine that's taken once per day, like phentermine (Adipex-P). Ask your primary care provider if you're curious to know more about the different formulations of phentermine.
                    Is Lomaira (phentermine) a controlled substance?
                    Yes, Lomaira (phentermine) is a controlled substance because it has a risk of being misused or causing dependence.
                    Do you need a prescription for Lomaira (phentermine)?
                    Yes, Lomaira (phentermine) is only available by prescription from a healthcare provider.
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                    dosage

                    Lomaira (phentermine) dosage forms

                    The average cost for 30 tablets of 8mg of Lomaira (phentermine) is $18.15 with a free GoodRx coupon. This is 35.86% off the average retail price of $28.30.
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                    Tablet
                    DosageQuantityPrice as low asPrice per unit
                    8mg30 tablets$18.15$0.60

                    Typical dosing for Lomaira (phentermine)

                    The typical dose is 8 mg by mouth three times per day, 30 minutes before each meal.

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                    Lomaira (phentermine) contraindications

                    Contraindications are specific health conditions or situations in which a person should not take a medication due to safety concerns. If you have any of the following conditions or if any of the following apply to you, let your healthcare provider know because Lomaira (phentermine) will not be safe for you to take.
                    alternatives

                    What are alternatives to Lomaira (phentermine)?

                    There are a number of medications that your doctor can prescribe in place of Lomaira (phentermine). Compare a few possible alternatives below.
                    Lomaira (phentermine)
                    Used for:
                    $18.15 Lowest GoodRx priceView Prices
                    Used for:
                    $7.90 Lowest GoodRx priceView Prices
                    Used for:
                    • Long-term treatment for weight management in:

                    • Lowering the risk of heart attack, stroke, and death due to heart problems in adults with heart disease and a larger body size

                    $1321.36 Lowest GoodRx priceView Prices
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                    References

                    Best studies we found

                    American Lung Association. (2024). Pulmonary arterial hypertension symptoms and diagnosis.

                    American Thyroid Association. (n.d.). Hyperthyroidism.

                    Centers for Disease Control and Prevention. (1998). Cardiac valvulopathy associated with exposure to fenfluramine or dexfenfluramine: U.S. Department of Health and Human Services interim public health recommendations, November 1997. Morbidity and Mortality Weekly Report.

                    View All References (8)

                    Drugs and Lactation Database (LactMed®). (2022). Phentermine. National Institute of Child Health and Human Development.

                    Drugs and Lactation Database (LactMed®). (2024). Amphetamine. National Institute of Child Health and Human Development.

                    KVK-Tech, Inc. (2023). Lomaira- phentermine hydrochloride tablet [package insert]. DailyMed.

                    Lewis, K. H., et al. (2019). Safety and effectiveness of longer-term phentermine use: Clinical outcomes from an electronic health record cohort. Obesity.

                    Teva Pharmaceuticals USA, Inc. (2024). Adipex-P- phentermine hydrochloride tablet [package insert]. DailyMed.

                    U.S. Food and Drug Administration. (2024). Some medicines and driving don’t mix.

                    United States Drug Enforcement Administration. (n.d.). Amphetamines.

                    Wadden, T. A., et al. (1998). The fen-phen finale: A study of weight loss and valvular heart disease. Obesity Research.

                    GoodRx Health has strict sourcing policies and relies on primary sources such as medical organizations, governmental agencies, academic institutions, and peer-reviewed scientific journals. Learn more about how we ensure our content is accurate, thorough, and unbiased by reading our editorial guidelines.
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