Phentermine
HCl:
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Phentermine
HCl:
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PHENTERMINE | Fastin
Pronounced: FAS-tin
Generic name: Phentermine hydrochloride
Other brand names: Adipex-P, Ionamin, Oby-Cap
Most important fact about this drug
Be sure to use this drug only as directed. It will lose its effect after a few weeks, and should be discontinued when this happens. If you try to boost its effectiveness by increasing the dose, you will run the risk of serious side effects and dependence on the drug.
How should you take this medication?
Take Fastin about 2 hours after breakfast. Do not take it late in the evening because it may keep you from sleeping.
Take Adipex-P before breakfast or up to 2 hours after breakfast. Tablets can be broken in half, if necessary.
Take Ionamin before breakfast or 10 to 14 hours before you go to bed. Ionamin capsules should be swallowed whole.
If you miss a dose
Skip the missed dose completely; then take the next dose at the regularly scheduled time.
Storage instructions
Store at room temperature.
What side effects may occur?
Side effects cannot be anticipated. If any develop or change in intensity, inform your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking this medication.
Side effects may include:
Changes in sex drive, constipation, diarrhea, dizziness, dry mouth, exaggerated feelings of depression or elation, headache, high blood pressure, hives, impotence, inability to fall or stay asleep, increased heart rate, overstimulation, restlessness, stomach or intestinal problems, throbbing heartbeat, tremors, unpleasant taste
Why should this drug not be prescribed?
If you are sensitive to or have ever had an allergic reaction to phentermine hydrochloride or other drugs that stimulate the nervous system, you should not take this medication. Make sure your doctor is aware of any drug reactions you have experienced.
Do not take this drug if you have hardening of the arteries, symptoms of heart or blood vessel disease, an overactive thyroid gland, the eye condition known as glaucoma, or high blood pressure. Also avoid this drug if you are agitated, have ever abused drugs, or have taken an MAO inhibitor, including antidepressant drugs such as Nardil and Parnate, within the last 14 days.
Special warnings about this medication
This drug can cause a rare but potentially fatal condition called primary pulmonary hypertension. Call your doctor immediately if you develop such warning signs as chest pain, shortness of breath, fainting spells, or swollen ankles.
Fastin may affect your ability to perform potentially hazardous activities. Therefore, you should be extremely careful if you have to drive a car or operate machinery.
You can become psychologically dependent on this drug. Consult your doctor if you rely on this drug to maintain a state of well-being.
If you stop taking Fastin suddenly after you have taken high doses for a long time, you may find you are extremely fatigued or depressed, or that you have trouble sleeping.
If you continually take too much of any appetite suppressant it can cause severe skin disorders, a pronounced inability to fall or stay asleep, irritability, hyperactivity, and personality changes.
Even if your blood pressure is only mildly high, be careful taking this drug.
Possible food and drug interactions when taking this medication
Remember that this drug should never be combined with the weight-loss drug fenfluramine (Pondimin); very dangerous side effects could result. This drug may also react badly with alcohol. Avoid alcoholic beverages while you are taking it.
If Fastin is taken with certain other drugs, the effects of either can be increased, decreased, or altered. It is especially important that you check with your doctor before combining Fastin with the following:
Drugs that boost serotonin levels, such as the antidepressants Luvox, Paxil, Prozac, and Zoloft
Drugs classified as MAO inhibitors, including the antidepressants Nardil and Parnate
Diabetes medications such as insulin and Micronase
High blood pressure medications such as guanethidine (Ismelin)
Special information if you are pregnant or breastfeeding
The effects of Fastin during pregnancy have not been adequately studied. If you are pregnant, plan to become pregnant, or are breastfeeding, notify your doctor immediately.
Recommended dosage
ADULTS
Fastin or Oby-Cap
The usual dosage is 1 capsule approximately 2 hours after breakfast. One capsule should suppress your appetite for 12 to 14 hours.
Adipex-P
The usual dose is 1 capsule or tablet a day, taken before breakfast or up to 2 hours after breakfast. Some people need only half a tablet each day. Others may find it more effective to take half a tablet twice daily.
Ionamin
The usual dose is 1 capsule a day, taken before breakfast or 10 to 14 hours before bedtime.
CHILDREN
This drug is not recommended for use in children under 16 years of age.
Overdosage
Any medication taken in excess can have serious consequences. An overdose of Fastin can be fatal. If you suspect an overdose, seek emergency medical treatment immediately.
Symptoms of Fastin overdose may include:
Abdominal cramps, aggressiveness, confusion, diarrhea, exaggerated reflexes, hallucinations, high or low blood pressure, irregular heartbeat, nausea, panic states, rapid breathing, restlessness, tremors, vomiting
Fatigue and depression may follow the stimulant effects of Fastin.
Why is this drug prescribed?
Fastin, an appetite suppressant, is prescribed for short-term use (a few weeks) as part of an overall weight reduction program that also includes dieting, exercise, and counseling. The drug is for use only by excessively overweight individuals who have a condition---such as diabetes, high blood pressure, or high cholesterol---that could lead to serious medical problems.
In cases of fatal poisoning, convulsions and coma usually precede death.
phentermine
Phentermine should be taken on an empty stomach, once daily, prior to breakfast. If in tablet form, the tablet may be broken or cut in half. Do NOT break, crush, or chew tablets.
As Phentermine may disrupt normal sleep patterns, avoid taking a dose late in the day. If taking more than one dose a day, take the last dose approx. 4-6 hours prior to going to bed.
The following information is specific only to the average doses of Phentermine. The recommended dose of Phentermine may be different for different patients. If your dose is different, do NOT change it unless your doctor tells you to do so.
Adults under Age 60
Oral dosage form (Capsules) - 15 to 37.5 mg once/day before breakfast or 1-2 hours after breakfast.
Oral dosage form (Tablets) - 15 to 37.5 mg once/day before breakfast or 1-2 hours after breakfast. Instead of taking it once a day, your doctor may tell you to take 15 to 37.5 mg in divided doses one-half hour before meals.
Oral resin dosage form (Capsules) - 15 to 30 mg once/day before breakfast.
Adults Age 60 and Over - A reduced dosage may be necessary. Consult your physician.
Infants and Children - Phentermine is NOT recommended for children under age 16.
phentermine hci
Take Phentermine ONLY as directed by your doctor.
Do NOT take more of it
Do NOT take it more often, and
Do NOT take it for a longer time than your doctor ordered.
If too much Phentermine is taken, it may cause unwanted effects or become habit-forming.
Please speak with your doctor if you think that Phentermine is not working properly after you have taken it for a few weeks. DO NOT increase the dose.
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diet medication
Phentermine is the most commonly prescribed prescription appetite suppressant, accounting for 50% of the prescriptions. Part of this reason is because it's significantly cheaper than the other major FDA-approved diet drugs, Meridia and Xenical.
Phentermine first received approval from the Food and Drug Administration (FDA) in 1959 as an appetite suppressant for the short-term treatment of obesity.
Phentermine resin became available in the United States in 1959 and Phentermine Hydrochloride in the early 1970s.
In the US, Phentermine is
currently sold under the brand names Ionamin® (Medeva Pharmaceuticals) and
Adipex-P® (Gate Pharmaceuticals). It is also available as a generic medication,
known as 'phentermine'.
Previously, it was sold under the name Fastin® (formerly produced by King
Pharmaceuticals for SmithKline Beecham). In December 1998, SK-Beecham withdrew
Fastin from the market.
As Phentermine is an older drug, no new efficacy trials have been conducted. The one notable exception, are several trials on the combination of Phentermine and Fenfluramine in the early and mid 1990s.
diet medicine
Fen-Phen refers to the combination, or cocktail, of Fenfluramine or Pondimin (the "Fen") and Phentermine (the "Phen"). Fenfluramine received FDA approval in 1973 for the short-term treatment of obesity. Together, Phentermine and Fenfluramine produced a powerful diet drug cocktail.
The FDA never approved the Fen-Phen combination, but once the agency has approved a drug, doctors may prescribe it at will. Their use, together, was considered "off-label".
In 1992, Dr. Michael Weintraub of the University of Rochester and several colleagues published a study citing Fen-Phen as a more effective method than dieting or exercise in reducing the weight of the chronically obese. Even better - Fen-Phen, unlike an earlier generation of speed-laden diet drugs, seemed to be without immediate side effects.
The Fen-Phen cocktail became an overnight sensation. 1996 saw 6.6 million prescriptions of Fen-Phen in the U.S.
Dexfen-Phen refers to the combination, or cocktail, of Dexfenfluramine or Redux (the "Dexfen") and Phentermine (the "Phen"). Dexfenfluramine received FDA approved in 1996 for use as an appetite suppressant in the management of obesity.
Like Fen-Phen, Dexfen-Phen, too, became an overnight sensation.
Neither combination, however, was ever tested for safety ....
By the summer of 1997, the Mayo Clinic reported 24 cases of heart valve disease. All 24 people had taken the Fen-Phen cocktail. The cluster of unusual cases of heart valve disease in Fen-Phen users suggested a co-relation between Fen-Phen use and heart valve disease.
diet pills
If you miss a dose, take it as soon as possible. However, if it is almost time for the next dose, skip the missed dose and take only the scheduled dose. Do NOT double the dose.
phentermine weight loss
other appetite suppressants). Please inform your doctor if you suffer from, or have suffered from:
| Advanced Atherosclerosis |
| Alcohol Abuse (or history of) |
| Allergies - Inform your doctor if you have ever had any unusual or allergic reaction to: |
| Phentermine | amphetamine | dextroamphetamine |
| ephedrine | epinephrine | isoproterenol |
| metaproterenol | methamphetamine | norepinephrine |
| phenylephrine | phenylpropanolamine | pseudoephedrine |
| terbutaline | other appetite suppressants | dyes |
| food | preservatives |
phentermine online
Breast Feeding - Use of Phentermine (or
other appetite suppressants) while breast-feeding is NOT recommended; it may
pass into breast milk, causing unwanted effects in nursing babies. Please
consult your doctor for advice.
Diabetes - Phentermine may affect blood sugar
levels. If you are diabetic and notice a change in the results of your urine or
blood sugar test or if you have any questions or concerns, please consult your
doctor.
Driving and Hazardous Work -
Phentermine (or other appetite suppressants) may cause some people to
feel a false sense of well-being or to become dizzy, lightheaded, drowsy, or
less alert than normal. Do NOT drive or engage in hazardous work until you know
how the medicine affects you.
appetite suppressant
Hyperthyroidism (over-active thyroid) - Phentermine
(or other appetite suppressants) may worsen the condition.
Infants and Children - Phentermine (or other
appetite suppressants) are NOT recommended for use by children under age 16.
Studies on appetite suppressants have been done only in adult patients, and
there is no specific information comparing use of Sympathomimetic appetite
suppressants in children with use in other age groups.
Kidney Disease -
The chance of serious side effects may increase due to higher blood
levels of Phentermine.
Pregnancy - Phentermine has not been shown to
cause birth defects in humans. Prior to taking this medication, tell your doctor
if you are pregnant or attempting to become pregnant.
