How Long Does Adipex Stay in the Bloodstream?

Adipex, also known in the generic form as Phentermine, is the most widely prescribed and most frequently encountered diet pill on the market, according to the U.S. Drug Enforcement Administration. This medication is given to obese patients as an aid in weight loss.

• Adipex

Expectations

• Digestive system

  The average person can expect Adipex to take from three to five days to pass through the body's digestive system. Factors of this process include the height and weight of the patient, as well as their BMI, or body mass index.

Considerations

• A specific person's metabolic rate is one factor that will change the period that Adipex stays in the bloodstream. As defined by Biology-Online.org, metabolic rate is the rate of metabolism, or the amount of energy used in a certain period. A patient exhibiting a fast metabolic rate would push the drug through their system at a more rapid pace.

Types

• Adipex is prescribed in many different forms, including capsules and tablets, some with time-released formulas. The strength prescribed can vary from 15mg to 37.5mg, and can effect the life of Adipex in the blood stream. According to Phentermine.com, doctors typically prescribe Adipex to be taken once per day, so any abuse of this medication could lead to a longer life in the digestive system.

Caffeine

• Caffeine

  The life of Adipex in the blood stream can be altered by the amount of caffeine consumed by the patient. Caffeine pushes the medication through the body at a faster pace than that of a patient who is caffeine free.

Medication

• Adipex, when used in conjunction of other drugs, can have various affects and lead to a faster or slower life in the body. Medications that a patient is currently using should be discussed with the prescribing physician, including herbal remedies and vitamins, so the interaction does not result in a dangerous condition.