Uses:

Phentermine is a stimulant that decreases the appetite and increases the feeling of fullness. It is used together with diet and exercise to treat obesity.
How To Take Medication:

Phentermine is taken once a day, and works best if taken on an empty stomach. Because the medication may cause insomnia, do not take it late in the day.
Possible Side Effects:

Headache, increased blood pressure and heart rate, nervousness, insomnia, dry mouth, or constipation may occur during the first few days, as your body adjusts to the medication. Other, more serious, side effects that require emergency medical care may occur.
Precautions

Tell the doctor if you have a history of high blood pressure, fast heart rate, over-active thyroid gland, glaucoma, diabetes, or mental illness. Be sure to list all medicines you use (prescription and non-prescription), especially medicines for high blood pressure, heart disease, diabetes, thyroid disease, glaucoma, anxiety, or depression.
Notes:

To be most effective, prescription diet pills are used in conjunction with healthy changes in your eating habits and activity level, not as an alternative.
Uses:

Diethylpropion is a stimulant that decreases the appetite and increases the feeling of fullness. It is used together with diet and exercise to treat obesity.
How To Take Medication:

Diethylpropion is taken once a day at mid-morning. Because the medication may cause insomnia, do not take it late in the day.
Possible Side Effects:

Headache, increased blood pressure and heart rate, nervousness, insomnia, dry mouth, or constipation may occur during the first few days, as your body adjusts to the medication. Other, more serious, side effects that require emergency medical care may occur.
Precautions

Tell the doctor if you have a history of high blood pressure, fast heart rate, over-active thyroid gland, glaucoma, seizures, or mental illness. Be sure to list all medicines you use (prescription and non-prescription), especially medicines for high blood pressure, heart disease, glaucoma, thyroid disease, seizures, anxiety, or depression.
Notes:

To be most effective, prescription diet pills are used in conjunction with healthy changes in your eating habits and activity level, not as an alternative.
Uses:

Benzphetamine is a stimulant that decreases the appetite and increases the feeling of fullness. It is used together with diet and exercise to treat obesity.
How To Take Medication:

Benzphetamine is taken once a day at mid-morning. Because the medication may cause insomnia, do not take it late in the day.
Possible Side Effects:

POSSIBLE Increased blood pressure and heart rate, dizziness, restlessness, insomnia, headache, or dry mouth may occur during the first few days, as your body adjusts to the medication. Other, more serious, side effects that require emergency medical care may occur.
Precautions

Tell the doctor if you have a history of high blood pressure, fast heart rate, heart disease, over-active thyroid gland, glaucoma, or diabetes. Tell the doctor if you think you are pregnant or are planning to get pregnant. Be sure to list all medicines you use (prescription and non-prescription), especially medicines for high blood pressure, heart disease, glaucoma, thyroid disease, diabetes, seizures, or anxiety.
Notes:

To be most effective, prescription diet pills are used in conjunction with healthy changes in your eating habits and activity level, not as an alternative.
Uses:

Belviq is a nonstimulant appetite suppressant that curbs the appetite and increases the feeling of fullness. It is used together with diet and exercise to treat obesity.
How To Take Medication:

Belviq is taken two times a day, with or without food.
Possible Side Effects:

Headache, dizziness, drowsiness, fatigue, nausea, constipation, dry mouth, cough, or back pain may occur during the first few days, as your body adjusts to the medication. Other, more serious, side effects that require emergency medical care may occur.
Precautions

Tell the doctor if you have diabetes, congestive heart failure, a heart valve disorder, sickle cell anemia, leukemia or myeloma, kidney or liver disease, emotional problems, clinical depression, or a physical deformity of the penis (such as Peyronie�s disease). Tell the doctor if you think you are pregnant or are planning to get pregnant. Be sure to list all medicines you use (prescription and non-prescription), especially medicines for high blood pressure, heart disease, diabetes, anxiety or depression, ADHD, cough or cold, erectile dysfunction, or migraines.
Notes:

To be most effective, prescription diet pills are used in conjunction with healthy changes in your eating habits and activity level, not as an alternative. Diabetic patients taking Belviq should closely monitor their blood sugar.
Uses:

Contrave is a nonstimulant combination medicine that curbs the appetite. It is used together with diet and exercise to treat obesity.
How To Take Medication:

Contrave is initially prescribed in titration, slowly increasing the dosage to maximum twice a day. Avoid taking the medicine with a high fat meal.
Possible Side Effects:

Headache, dizziness, nausea and vomiting, constipation, insomnia, dry mouth, increased blood pressure or heart rate, anxiety, excess sweating, or flu-like symptoms. Other, more serious, side effects that require emergency medical care may occur.
Precautions

Tell the doctor if you have seizures, kidney or liver disease, diabetes, heart disease, high blood pressure, glaucoma, emotional problems, clinical depression, history of head injury, currently taking narcotic pain medicine, or have a history of drug or alcohol abuse, dependence, or addiction. Tell your doctor if you think you are pregnant or are planning to get pregnant. Be sure to list all medicines you use (prescription and non-prescription), especially medicines for high blood pressure, heart disease, diabetes, anxiety or depression, or chronic pain.
Notes:

To be most effective, prescription diet pills are used in conjunction with healthy changes in your eating habits and activity level, not as an alternative. Diabetic patients taking Contrave should closely monitor their blood sugar.