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Active pharmaceutical ingredient

Phentermine

Phentermine is a sympathomimetic amine with pharmacological activity similar to amphetamines, primarily used as an appetite suppressant in the management of obesity.

Compounded to order
Prescription required
Warwick, Rhode Island

About this ingredient

Phentermine is a sympathomimetic amine with pharmacological activity similar to amphetamines, primarily used as an appetite suppressant in the management of obesity. It functions by stimulating the central nervous system, increasing heart rate and blood pressure, and decreasing appetite, which can aid in weight loss when combined with diet and exercise.

As a short-term adjunct in a regimen of weight reduction, phentermine is typically prescribed for individuals with a body mass index (BMI) of 30 kg/m² or greater, or 27 kg/m² with associated risk factors such as hypertension, diabetes, or hyperlipidemia. The efficacy of phentermine in promoting weight loss has been demonstrated in various clinical studies, making it a valuable option for patients struggling with obesity-related health issues.

Phentermine is metabolized in the liver and excreted primarily by the kidneys, with a half-life ranging from 19 to 24 hours, allowing for once-daily dosing. It is important for prescribers to consider potential contraindications, such as cardiovascular disease, hyperthyroidism, or a history of drug abuse, when prescribing phentermine.

Common side effects may include increased heart rate, dry mouth, insomnia, and nervousness, which should be monitored throughout the treatment duration. Due to its potential for abuse and dependence, phentermine is classified as a Schedule IV controlled substance, necessitating careful patient selection and monitoring by healthcare providers.

Available formulations

Compounded formulations containing this ingredient

Each of these is compounded to order at our Warwick, Rhode Island pharmacy and requires a prescription.

We do not have a patient page for this ingredient yet. That does not mean we cannot make it. Bayview compounds this ingredient to a prescriber's order, and our full compounding formulary lists every preparation we make. Viewing the formulary requires a prescriber account.

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Compounding formulary

Formulas we compound with this ingredient

A sample of preparations from our formulary. Strengths and dose forms are customised to the prescription.

Common questions

Frequently asked questions

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Related

Related active ingredients

Other salt forms of this molecule, and ingredients commonly compounded alongside it.

Important information

This page describes an active pharmaceutical ingredient, not a finished drug product. Bayview Pharmacy compounds preparations containing it only on a prescriber's order for an individual patient.

Compounded preparations are not FDA-approved, and the FDA has not evaluated them for safety, effectiveness, or manufacturing quality. Nothing on this page is a claim that any preparation is effective for any condition.

A valid prescription is required. Availability depends on Bayview's licensure in your state. This page is general information, not medical advice — discuss your situation with a licensed healthcare provider.

Talk to a compounding pharmacist

Our pharmacists work with prescribers to build preparations around a patient's dose, form and tolerances. Ask us what is possible with this ingredient.