[fifo]

I've been on Phentermine for about 4 weeks. I've dropped about 6 pounds and my doctor has put me on for another 4 weeks. However, I think I am experiencing impotence since I have been on it. I have the energy and the drive but equipment failure.

Has anyone experienced this problem? Don't know if it is the Phentermine or just in my head.

[susanpesek]

IT IS POSSIBLE, YES!What are the possible side effects of phentermine?

If you experience any of the following serious side effects, stop taking phentermine and seek emergency medical attention:

• an allergic reaction (difficulty breathing; closing of your throat; swelling of your lips, tongue, or face; or hives);
• an irregular heartbeat or very high blood pressure (severe headache, blurred vision); or
• hallucinations, abnormal behavior, or confusion.

Other, less serious side effects may be more likely to occur. Continue to take phentermine and talk to your doctor if you experience

• restlessness or tremor,
• nervousness or anxiety,
• headache or dizziness,
• insomnia,
• dry mouth or an unpleasant taste in your mouth,
• diarrhea or constipation, or
• impotence or changes in your sex drive.

Phentermine is habit forming. You can become physically and psychologically dependent on this medication, and withdrawal effects may occur if you stop taking it suddenly after several weeks of continuous use. Talk to your doctor about stopping this medication gradually.Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

What other drugs will affect phentermine?

You cannot take phentermine if you have taken a monoamine oxidase inhibitor (MAOI) such as isocarboxazid (Marplan), tranylcypromine (Parnate), or phenelzine (Nardil) in the last 14 days.
Changes in insulin and other diabetes drug therapies may be necessary during treatment with phentermine.
Phentermine may reduce the effects of guanethidine (Ismelin). This could lead to an increase in blood pressure. Tell your doctor if you are taking guanethidine.
Before taking this medication, tell your doctor if you are taking a tricyclic antidepressant such as amitriptyline (Elavil), amoxapine (Asendin), doxepin (Sinequan), nortriptyline (Pamelor), imipramine (Tofranil), clomipramine (Anafranil), protriptyline (Vivactil), or desipramine (Norpramin). These drugs may decrease the effects of phentermine.
Drugs other than those listed here may also interact with phentermine. Talk to your doctor and pharmacist before taking any prescription or over-the-counter medicines.

Where can I get more information?

Your pharmacist has more information about phentermine written for health professionals that you may read.

What does my medication look like?

Phentermine is available with a prescription under the brand names Adipex and Fastin. Other brand or generic formulations may also be available. Ask your pharmacist any questions you have about this medication, especially if it is new to you.

• Adipex-P 37.5 mg--white, oblong, scored tablets with blue speckles
• Adipex-P 37.5 mg--light-blue-and-white capsules with two blue bands
• Fastin 30 mg--blue-and-clear capsules with blue and white beads