What is Adipex?
Adipex, also available as Phentermine, is a short-term plan medicine and a low-calorie diet for weight reduction. It is helpful in obese patients who are unable to lose weight with diet and exercise alone. Adipex belongs to a group of drugs known as appetite suppressants. Adipex may work by increasing the amount of energy your body uses, decreasing your appetite, or by affecting certain parts of the brain. This drug is an appetite suppressant that belongs to a class of drugs known as sympathomimetic amines.
Adipex may be habit-forming. If this drug is not working correctly even after taking it for a few weeks, do not increase it. Instead, consult your doctor. This drug may sometimes cause addiction. Do not suddenly stop taking Adipex, or you may face withdrawal symptoms such as severe tiredness, depression. Take your doctor’s help to stop using this drug safely. Your doctor may lower your dose gradually. Withdrawal is more likely if you are taking this medicine for a long time or in high doses. Tell your medical health care professional immediately if you have withdrawal symptoms. Using this medicine during pregnancy can cause harm to an unborn baby. You can use an effective birth control form to prevent pregnancy. If you think you became pregnant while taking Adipex, tell your doctor immediately.
What to know before taking Adipex?
Before taking Adipex, tell your medical healthcare provider if you are also using similar drugs such as diethylpropion, benzphetamine, Bontril, phendimetrazine, or Didrex. Be careful and call your doctor urgently if you notice a decrease in your ability to exercise, or if you faint, swelling of your lower legs or feet, have chest pain, or trouble with breathing. Do not use Adipex if you also take MAO inhibitors such as phenelzine (Nardil), isocarboxazid (Marplan), tranylcypromine (Parnate), or selegiline (Eldepryl) if you were taking an MAOI within the past two weeks. Interaction of these medicines with each other may cause serious unwanted side effects. Adipex can cause some people to become lightheaded, dizzy, or less alert than they usually are. Ensure your response to this drug before you drive any vehicle, use heavy machinery, or do something that requires alertness. Adipex can affect blood sugar levels. Diabetic patients may notice a change in urine or blood sugar tests.
How to take Adipex?
Take Adipex orally per your doctor’s direction, usually one time a day, one hour before breakfast, or an hour or two after breakfast. According to your medical requirements, your doctor may adjust your dosage to a small dose up to three times a day. Taking Adipex late in the day may lead to trouble sleeping (insomnia). If you are taking sustained-release capsules, you may need to take your dose one time a day before breakfast or about 10 to 14 hours before bedtime. Swallow the whole medicine rather than crushing or chewing it. Doing so with a sustained-release tablet can increase the risks of side effects. If you are taking Adipex pills to dissolve in the mouth, doctors recommend taking the dosage once a day in the morning, with or without food. Dry your hands before handling the tablet. Place the pill on the top of your tongue until it dissolves, then swallow it with or without water.
The usual dosage for obesity (adults and children of 17 years or older):
- 15 mg to 37.5 mg one time a day before or within an hour or two after breakfast.
In case of an overdose of Adipex, take medical help or call the Poison helpline at 1-800-222-1222. An overdose of Adipex or Adipex-P can be fatal. Overdose symptoms may include panic, confusion, extreme restlessness, hallucinations, vomiting, nausea, stomach cramps, diarrhea, irregular heartbeats, feeling tired or depressed, seizure, weak pulse, or slow breathing that may stop.
What to avoid while using Adipex?
Avoid drinking alcohol in any form while you are taking this medicine. Do not take other medications before consulting with your doctor. It includes prescription and nonprescription (over-the-counter) medications, herbal remedies, dietary supplements, or medicines for asthma, appetite control, cough, colds, sinus problems, and hay fever.
Adipex side effects
Along with its desired effects, a drug may lead to some unwanted effects. Although not all of these may occur, if they do, they may need medical attention. Immediately check with your health care professional if any of the following aftereffects occur:
- Several mental changes
- Feeling, listening, or seeing things that are not there.
Incidence not known:
- Decreased ability to exercise
- Chest pain
- Irregular, fast, racing, or pounding heartbeat or pulse
- Swelling of the lower legs or feet
- Tingling or numbness in the legs or arms
- Trouble breathing
- Shaking or trembling of the feet, hands, arms, or legs
- The trouble with speaking, thinking, or walking
Some side effects do not require immediate medical attention, and they may go away during treatment as your body adjusts to the medication. Your medical healthcare professional may tell you ways to prevent or reduce some of these side effects. Consult your doctor if any of these effects continue or are bothersome or if you have any queries about them:
Incidence not known
- Difficulty having a stool (bowel movement)
- Decreased interest in sexual intercourse
- Unusual or false sense of being
- Dry mouth
- Inability to attain or keep an erection
- Itching, hives or welts, or skin rash
- Increased interest in sexual intercourse
- Increase in sexual desire, ability, performance, or drive
- Redness of skin
- Loss in sexual desire, capacity, performance, or drive
- Unpleasant taste
Other side effects to Adipex may also occur in some patients. If you notice any other effects, contact your health care professional. Consult your doctor for medical advice regarding side effects. Report side effects to FDA at 1-800-FDA-1088.
What drugs can interact with Adipex?
Taking Adipex with other diet medications can cause heart valve problems or pulmonary hypertension (a rare fatal lung disorder). Consult your doctor before taking Adipex with any other diet medicines. Tell your medical healthcare professional about the medicines or treatment you are taking currently, and you start or stop taking, including:
- Other weight-loss drugs;
- Diabetes medications like metformin, insulin, others;
- Antidepressants including MAO inhibitors such as phenelzine (Nardil), isocarboxazid (Marplan), methylene blue injection, tranylcypromine (Parnate), or selegiline (Eldepryl) or selective serotonin uptake inhibitors (fluvoxamine, fluoxetine, sertraline, paroxetine, others); or
- Specific medicines for blood pressure (metoprolol, labetalol, doxazosin, propranolol, terazosin, others).
It is not a complete list, and other drugs may also interact, including prescription and over-the-counter (OTC) medicines, herbal products, and vitamins.