What's the difference between phentermine and phentermine?

While phendimetrazine is restricted to those age 17 years or older, phentermine is limited to those aged 16 years or older. Phendimetrazine also comes in an extended release form which may have different dosing instructions. Phendimetrazine and phentermine should only be used under the guidance of a doctor.

singlecare.com - Phendimetrazine vs Phentermine: Main Differences and Similarities

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Phendimetrazine and phentermine are two medications that can be used for obesity. They can also treat those who are overweight with high blood pressure, diabetes, or high cholesterol. Both phendimetrazine and phentermine are only recommended for a short duration with an appropriate diet and exercise regimen. As sympathomimetics, phendimetrazine and phentermine work similarly to amphetamines.

Phendimetrazine

Phendimetrazine (What is Phendimetrazine?) is the generic name for Bontril PDM. It is recommended for those who are 17 years old or older with obesity. Although its mechanism of action is not entirely clear, it may help suppress appetite as a CNS stimulant. Phendimetrazine is taken as a 35 mg oral tablet 1 hour before meals. An extended-release 105 mg oral capsule is also available. The extended-release form is taken 30 to 60 minutes before breakfast.

Phentermine

Phentermine (What is Phentermine?) is the generic name for Adipex P and Lomaira. Like Phendimetrazine, it is prescribed to treat obesity in combination with an appropriate diet and exercise plan. It is only recommended to be taken in those who are older than 16 years of age. Phentermine is available as a general 37.5 mg oral tablet. It also comes in a 15 mg, 30 mg, or 37.5 mg oral capsule. The brand name, Lomaira, comes as an 8 mg tablet. Dosing ultimately depends on your doctor’s instruction. Still, it is usually taken before or after breakfast.

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Phendimetrazine vs Phentermine Side by Side Comparison

Phendimetrazine and phentermine are similarly acting medications. As prescription medications for obesity, they share several similarities and differences. These features can be found below.

Phendimetrazine Phentermine Prescribed For Obesity

Overweight with other risk factors (hypertension, diabetes, hyperlipidemia) Obesity

Overweight with other risk factors (hypertension, diabetes, hyperlipidemia) Drug Classification Sympathomimetic

Anorectic Sympathomimetic

Anorectic Manufacturer Generic Generic Common Side Effects Increased heart rate

Increased blood pressure

Heart palpitations

Flushing

Sweating

Constipation

Diarrhea

Dry mouth

Nausea

Dizziness

Headache

Insomnia

Tremors

Agitation

Nervousness

Restlessness

Irritability

Increased urination

Altered libido Dry mouth

Insomnia

Increased heart rate

Increased blood pressure

Heart palpitations

Flushing

Sweating

Constipation

Diarrhea

Nausea

Dizziness

Headache

Tremors

Agitation

Nervousness

Restlessness

Irritability

Increased urination

Altered libido Is there a generic? Phendimetrazine is the generic name. Phentermine is the generic name. Is it covered by insurance? Varies according to your provider Varies according to your provider Dosage Forms Oral tablet

Oral capsule, extended release Oral tablet

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Oral capsule Average Cash Price $$32.14 per 90 tablets (35 mg) $40 (per 30 tablets) SingleCare Discount Price Phendimetrazine Price Phentermine Price Drug Interactions Monoamine oxidase inhibitors (selegiline, phenelzine, isocarboxazid, etc.)

Alcohol

Insulin

Oral hypoglycemic medications (glyburide, glimepiride, sitagliptin, pioglitazone, acarbose, etc.)

Adrenergic neuron blocking drugs (reserpine, guanethidine, etc.) Monoamine oxidase inhibitors (selegiline, phenelzine, isocarboxazid, etc.)

Alcohol

Insulin

Oral hypoglycemic medications (glyburide, glimepiride, sitagliptin, pioglitazone, acarbose, etc.)

Adrenergic neuron blocking drugs (reserpine, guanethidine, etc.) Can I use while planning pregnancy, pregnant, or breastfeeding? Phendimetrazine is in Pregnancy Category X and may cause fetal harm when administered to pregnant women. Phendimetrazine is not recommended in pregnant women. Phentermine is in Pregnancy Category X and may cause fetal harm when administered to pregnant women. Phentermine is not recommended in pregnant women.

Summary

Both phendimetrazine and phentermine are medications prescribed for obesity. The exact mechanism of action of both medications is unknown. However, they are believed to play a role in suppressing appetite. As CNS stimulants that are similar to amphetamines, they carry similar side effects and drug interactions. Both medications can cause increased heart rate, increased blood pressure, and heart palpitations. They can even cause insomnia in some people. Therefore, they should not be taken at night before bedtime Phendimetrazine and phentermine should also not be used during or within 14 days of using monoamine oxidase inhibitors. Otherwise, there is a higher risk of increased blood pressure. While phendimetrazine is restricted to those age 17 years or older, phentermine is limited to those aged 16 years or older. Phendimetrazine also comes in an extended release form which may have different dosing instructions. Phendimetrazine and phentermine should only be used under the guidance of a doctor. Because they both have similar side effects and drug interactions, it is important to discuss your options with your doctor. Both medications are also contraindicated during pregnancy because of fetal risks.

singlecare.com - Phendimetrazine vs Phentermine: Main Differences and Similarities

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