Best Weight Loss Drugs: How to Choose the Right One for You

Weight loss medications work in different ways. Some reduce appetite. Others block fat absorption. A few do both.

Choosing the right one depends on your health history, budget, and how your body responds to treatment.

Types of Weight Loss Drugs

GLP-1 Receptor Agonists

These drugs mimic a hormone that regulates blood sugar and appetite. They're injected weekly.

Common options include semaglutide (Ozempic, Wegovy) and tirzepatide (Zepbound, Mounjaro).

They typically produce 15 to 22 percent weight loss over six months to a year.

Cost: Brand-name versions run 900 to 1,500 dollars monthly without insurance.

Side effects: Nausea, vomiting, constipation. Rarely, pancreatitis.

Lipase Inhibitors

Orlistat (Xenical, Alli) blocks your gut from absorbing about 25 percent of dietary fat.

It's available over the counter and by prescription.

Cost: 30 to 60 dollars monthly.

Side effects: Oily stools, urgent bowel movements, vitamin deficiencies with long-term use.

Sympathomimetic Amines

Phentermine and diethylpropion are appetite suppressants taken as pills.

They're typically prescribed for short-term use, usually 12 weeks or less.

Cost: 20 to 100 dollars monthly.

Side effects: Increased heart rate and blood pressure, insomnia, anxiety.

How to Choose

Start by talking to your doctor about your weight loss goals and medical history. Some drugs interact with other medications or aren't safe for certain conditions.

If cost is a concern, ask about generics or patient assistance programs. Insurance coverage varies widely by plan and state.

Expect to try a medication for at least three months before deciding if it works for you. Weight loss drugs are most effective when combined with diet and exercise changes.

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