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Does Saxenda work better than Phentermine?

Phentermine has an average rating of 8.7 out of 10 from a total of 2980 ratings on Drugs.com. 84% of reviewers reported a positive effect, while 5% reported a negative effect. Saxenda has an average rating of 7.5 out of 10 from a total of 1382 ratings on Drugs.com.

drugs.com - Phentermine vs Saxenda Comparison - Drugs.com

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View side-by-side comparisons of medication uses, ratings, cost, side effects and interactions.

More about Phentermine More about Saxenda (liraglutide)

Generic Status

Lower-cost generic is available No lower-cost generic available

Ratings & Reviews

Drug Class

Side Effects

See also: phentermine side effects in more detail. See also: Saxenda side effects in more detail.

Pricing and Coupons * Prices are without insurance

Quantity 7 tablet Dosage 37.5 mg Per Unit* $1.77 Cost* $12.36 View all phentermine prices Quantity 15 mL Dosage 18 mg/3 mL Per Unit* $95.33 Cost* $1,430.01 View all Saxenda prices

Dosage Form(s) Available

Oral capsule

Oral tablet Subcutaneous solution

Brand Names

Half Life The half-life of a drug is the time taken for the plasma concentration of a drug to reduce to half its original value.

20 hours 13 hours

4 Some potential for abuse Has a low potential for abuse relative to those in schedule 3. It has a currently accepted medical use in treatment in the United States. Abuse may lead to limited physical dependence or psychological dependence relative to those in schedule 3. N Not a controlled drug Is not subject to the Controlled Substances Act.

Pregnancy Category

X Category X Not for use in pregnancy See the full pregnancy warnings document. C Category C Risk cannot be ruled out Victoza X Category X Not for use in pregnancy Saxenda See the full pregnancy warnings document.

Drug Interactions

A total of 171 drugs are known to interact with phentermine: 42 major drug interactions (182 brand and generic names) drug interactions (182 brand and generic names) 127 moderate drug interactions (581 brand and generic names) drug interactions (581 brand and generic names) 2 minor drug interactions (5 brand and generic names) A total of 250 drugs are known to interact with Saxenda: 2 major drug interactions (5 brand and generic names) drug interactions (5 brand and generic names) 222 moderate drug interactions (1136 brand and generic names) drug interactions (1136 brand and generic names) 26 minor drug interactions (597 brand and generic names)

Alcohol/Food/Lifestyle Interactions

Using phentermine with alcohol can increase the risk of cardiovascular side effects such as... View more Liraglutide may affect the absorption of other medications that you take by mouth. In some cases... View more Talk to your doctor before using alcohol together with liraglutide. Alcohol may affect blood... View more

Disease Interactions

First Approval Date

August 14, 1973 N/A

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What is the best time of day to take Saxenda for weight loss?

What time should Saxenda® be dosed? Saxenda® can be taken at any time, independent of meals. Once on Saxenda®, if you find a time that is convenient for you, try to take Saxenda® at that time every day.

saxenda.com - Frequently Asked Questions | Saxenda® (liraglutide) injection 3mg

As you decide on how to work toward your weight-management goals, you may have questions. The following are a few frequently asked questions about how to take Saxenda® and the support available if you and your health care provider decide Saxenda® is right for you. If you have immediate questions or experience side effects while on Saxenda®, please reach out to your health care provider. Saxenda® is an injectable prescription medicine that, when used with a reduced-calorie diet and increased physical activity, may help adults with obesity or overweight (excess weight) who also have weight-related medical problems, and children aged 12 to 17 years with a body weight above 132 pounds (60 kg) and obesity, lose weight and keep the weight off. Saxenda® and Victoza® have the same active ingredient, liraglutide, and should not be used together or with other GLP-1 receptor agonist medicines. It is not known if Saxenda® is safe and effective when taken with other prescription, over-the-counter medicines, or herbal weight-loss products. It is not known if Saxenda® is safe and effective in children under 12 years of age. It is not known if Saxenda® is safe and effective in children aged 12 to 17 years with type 2 diabetes. Click here for the full indication.

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