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Qsymia vs. Ozempic

Head-to-head comparisons of medication uses, side effects, warnings, and more.

Key takeaways

Qsymia (phentermine/topiramate) and Ozempic (semaglutide) are both prescription medications that can help with weight management, but they have some important differences. Qsymia is a combination of a sympathomimetic and an antiepileptic, specifically approved for weight loss and long-term weight management in people living with obesity or are living with overweight and have at least one weight-related condition. Ozempic, on the other hand, is a GLP-1 agonist primarily approved for treating Type 2 diabetes and reducing the risk of heart problems in adults with this condition. While Ozempic is not FDA-approved for weight loss, it is sometimes used off-label for this purpose. Qsymia is taken by mouth once a day, while Ozempic is injected under the skin once a week. Qsymia is a controlled substance due to the phentermine component, whereas Ozempic is not. Common side effects of Qsymia include dry mouth and constipation, while Ozempic often causes nausea and diarrhea. Qsymia can cause a fast heart beat, while Ozempic can increase the risk of some types of thyroid cancers. Both medications can cause problems with vision.

Qsymia

(phentermine / topiramate ER)

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Ozempic

(semaglutide)

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Summary for Qsymia

Prescription only

Qsymia (phentermine / topiramate extended release) is a combination medication used to help with weight loss. It's approved for people over 12 who are considered obese and for some adults who are considered overweight. This medication is a tablet that you take once a day. You should also eat a balanced diet and exercise regularly for best results. Side effects include a "pins-and-needles" feeling, dry mouth, and constipation. You can only get this medication through the Qsymia REMS (Risk Evaluation and Mitigation Strategies) program because of the risk of birth defects if taken during pregnancy.

Indications for Qsymia

Pros and Cons for Qsymia

Pros

  • A pill that's taken once a day
  • Combines two ingredients that help lower appetite into one pill for convenience
  • An option for certain children 12 years and older, if diet and exercise aren't enough

Cons

Common Side Effects for Qsymia

Adults:

  • Feeling of pins and needles (up to 20%)
  • Dry mouth (up to 19%)
  • Constipation (up to 16%)
  • Upper respiratory tract infection (up to 16%)
  • Headache (up to 11%)
  • Change in taste (up to 9%)
  • Trouble sleeping (up to 9%)
  • Dizziness (up to 9%)

Children:

  • Depression (up to 4%)
  • Nausea (up to 4%)
  • Fever (up to 4%)
  • Dizziness (up to 4%)
  • Joint pain (up to 4%)

Warnings for Qsymia

  • Harm to an unborn baby
  • Mood problems and suicidal thoughts or behavior
  • Fast heart beat
  • Vision problems
  • Problems concentrating
  • Higher level of acid in blood (metabolic acidosis)
  • Possible lower kidney function
  • Kidney stones
  • High body temperature and inability to sweat
  • Serious allergic reactions and skin reactions
  • Possible slowed growth in children

Summary for Ozempic

Prescription only

Ozempic (semaglutide) is a GLP-1 agonist used with diet and exercise to help adults manage Type 2 diabetes. It can also lower the risk of heart attack, stroke, and heart-related death in some people with Type 2 diabetes. It comes as a once-weekly injection under the skin and as a tablet taken by mouth once a day. The injection is also approved to help slow worsening kidney problems in people with Type 2 diabetes and chronic kidney disease (CKD). Common side effects include nausea, vomiting, and diarrhea.

Indications for Ozempic

Injection:

Tablets:

Pros and Cons for Ozempic

Pros

  • Only given once per week
  • Might help you lose weight
  • Helps lower the risk of heart problems and kidney problems in people with type 2 diabetes
  • Available as an injection and an oral tablet

Cons

  • Commonly causes nausea, vomiting, and diarrhea
  • Risk of low blood sugar if taken with certain diabetes medications
  • Can't be used for Type 1 diabetes
  • Interacts with medications taken by mouth

Common Side Effects for Ozempic

Note: Side effects listed above are for Ozempic (semaglutide) injection

Warnings for Ozempic

  • Risk of thyroid tumors
  • Inflammation of the pancreas (pancreatitis)
  • Eye problems
  • Low blood sugar (hypoglycemia) when taken with certain diabetes medications
  • Kidney damage
  • Severe stomach problems
  • Severe allergic reactions
  • Gallbladder problems
  • Lung problems during anesthesia or deep sedation

Prices with our coupons for Qsymia vs. Ozempic

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Qsymia30 capsules / 7.5mg/46mg
$89.10$250.06
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Ozempic30 tablets / 1.5mg
$149.00$1,211.99
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