What Is the Drug Called Fastin?

Phentermine can only be purchased with a prescription.

Fastin is a brand-name version of a drug called phentermine, originally produced by the pharmaceutical company SmithKline Beecham. Phentermine is a prescription medication that may be used in combination with diet and exercise to help the obese lose weight.

History

The phentermine version of Fastin was pulled from the American market in 1998, and in 2009, a non-phentermine product began being sold under the same name. According to Drugs.com, phentermine products are currently sold under such names as Adipex and Obenix.

Method of Action

Phentermine excites the central nervous system and suppresses appetite. It is similar in nature to amphetamines.

Side Effects

Possible side effects include insomnia, dry mouth and increased blood pressure. Phentermine can cause a potentially fatal lung condition called pulmonary hypertension.

Addiction

Due to its similarities to amphetamines, phentermine can be addictive and can result in altered personality traits and psychotic breaks. RxMed notes that in the event of addiction, a slow reduction in dosage is generally preferable to an abrupt stop.

Dosage

Phentermine is generally sold in a capsule form at a dosage rate of 30 milligrams per capsule. It is normally prescribed to be taken once a day in the morning.

References

• Drugs.com: "Fastin"
• RxMed: Prescription Information