If you’re looking for an effective solution to lose weight, you’ve probably heard of Ozempic. It’s an antidiabetic medication that’s often prescribed for off-label weight loss. Many users report positive experiences with this medication. If you’re considering it, understanding the side effects of Ozempic can help you plan how to avoid them. Learn everything you need to know about the common, serious, gender-specific, and long-term impacts of Ozempic use, plus key tips on managing them.
What Is Ozempic?
Ozempic is a glucagon-like peptide 1 (GLP-1) receptor agonist indicated to help people with diabetes control their blood sugar levels. It also has cardiovascular benefits and can help reduce complications related to heart disease.
It contains the active ingredient semaglutide. This prescription-only drug comes in four doses — 0.25 mg, 0.5 mg, 1 mg, and 2 mg — injected subcutaneously once every week.
While it’s FDA-approved for diabetes, it’s also prescribed for off-label weight loss. Clinical trials have proven it’s effective for both diabetes and weight reduction, but it causes side effects. Ozempic use is associated with gastrointestinal side effects and some serious risks you should be aware of.
What Are the Most Common Side Effects of Ozempic?
Like most medications, Ozempic can cause some mild discomfort, particularly during the first few weeks that your body adjusts to the drug and every time the dose is increased.
The most common gastrointestinal side effects of Ozempic include:
1. Nausea
Nausea is the most commonly reported side effect of Ozempic, with 15.8% of patients taking 0.5 mg dose and 20.3% of those taking 1 mg experiencing it. It happens because Ozempic slows down gastric emptying to control blood sugar levels, but in exchange, this leads to nausea. Fortunately, it subsides over time as the body adapts to the treatment.
2. Vomiting
Vomiting is another common side effect of Ozempic. Like nausea, it happens due to the slow movement of the food through the stomach. In clinical trials, about 5% of patients taking 0.5 mg Ozempic dose and 9.2% of those taking 1 mg experience it.
3. Diarrhea
Some Ozempic users may also experience diarrhea, especially during the initial phase of use. Approximately 8.5% of patients on the 0.5 mg dose and 8.8% on the 1 mg are affected by it. Like the first two, diarrhea improves with time as the body adjusts to the medication.
4. Constipation
During the first few weeks, some users may experience constipation due to reduced gastric motility. In clinical trials, 5% of patients on the 0.5 mg dose and 3.1% on the 1 mg dose reported having constipation.
5. Abdominal pain
In studies, 7.3% of patients on the 0.5 mg dose and 5.7% on the 1 mg dose reported having abdominal pain. Like other gastrointestinal side effects, this should improve once your body has adapted to the treatment.
Here’s a table that breaks down the percentage of patients affected by these digestive issues during treatment versus placebo.
| Adverse Reactions | Placebo (%) (N=262) | Ozempic 0.5 mg (%) (N=260) | Ozempic 1 mg (%) (N=261) |
|---|---|---|---|
| Nausea | 6.1 | 15.8 | 20.3 |
| Vomiting | 2.3 | 5.0 | 9.2 |
| Diarrhea | 1.9 | 8.5 | 8.8 |
| Abdominal pain | 4.6 | 7.3 | 5.7 |
| Constipation | 1.5 | 5.0 | 3.1 |
These adverse reactions are reported in at least 5% of the patients treated with this GLP-1 drug. Fortunately, symptoms are usually temporary and get better after a few weeks. If they persist and show no improvement, talk to your doctor.
Less Common Side Effects Of Ozempic
Below are some less prevalent side effects of using Ozempic.
1. Injection Site Reactions
Ozempic is administered subcutaneously, which may cause mild inflammation or irritation in people with sensitive skin. In placebo-controlled trials, 0.2% of patients treated with Ozempic reported having red patches, swelling, or tenderness in the injection site.
2. Increases in Amylase and Lipase
Ozempic has been associated with increases in amylase and lipase — enzymes produced by the pancreas to help digest carbohydrates and fats. Patients experienced increases in amylase and lipase in clinical trials by 13% and 22%, respectively. Significantly elevated enzyme levels may signal pancreatic irritation or, in rare cases, pancreatitis.
3. Increases in Heart Rate
Based on studies, patients who took 0.5 mg and 1 mg Ozempic doses increased their heart rate by 2 to 3 beats per minute. In most cases, this symptom doesn’t lead to serious health concerns, but it’s better to let your doctor know so they can closely monitor your condition.
4. Fatigue, Dysgeusia, and Dizziness
Approximately 0.4% of patients treated with Ozempic may also feel lightheaded, more fatigued than usual, and experience changes in taste.
5. Dyspepsia or Indigestion
About 3.5% of patients on the 0.5 mg Ozempic dose and 2.7% of those on the 1 mg dose feel discomfort in the upper abdomen.
6. Gastroesophageal Reflux Disease (GERD)
Approximately 1.9% of patients on the 0.5 mg Ozempic injection and 1.5% on 1 mg experience heartburn.
7. Gastritis
In clinical trials, 0.8% of patients on the 0.5 mg injection and 0.4% on the 1 mg dose developed stomach inflammation.
These symptoms are often mild and don’t progress into serious health concerns. They also improve over time.
Side Effects When Ozempic Is Combined With Another Medicine
Patients who use Ozempic in combination with another blood glucose-lowering drug, like sulfonylurea or insulin, have an increased risk of hypoglycemia. Some associated symptoms are:
-
- Dizziness or light-headedness
- Blurred vision
- Anxiety, irritability, or mood changes
- Sweating
- Slurred speech
- Hunger
- Confusion or drowsiness
- Shakiness
- Weakness
- Headache
- Fast heartbeat
- Feeling jittery
Talk to your doctor if you experience these signs so they can adjust your treatment plan.
What Are the Serious or “Terrible” Side Effects of Ozempic?
Most users can tolerate Ozempic well, but there are some serious risks you should be aware of.
1. Pancreatitis
Pancreatitis is a serious side effect to watch out for, characterized by severe abdominal pain, vomiting, fever, and rapid pulse. Healthcare providers recommend quitting Ozempic immediately if symptoms of pancreatitis are suspected.
2. Diabetic Retinopathy Complications
Some diabetes patients may develop vision complications due to the rapid improvement in blood sugar levels. This sudden change can damage the blood vessels in the retina. Symptoms include blurry vision, dark or empty areas, and spots or dark strings floating in your vision.
3. Hypoglycemia
The risk of excessively low blood sugar is high for patients who use Ozempic in combination with another medication that has a blood sugar-lowering effect.
4. Acute Kidney Injury
In clinical trials, people who developed severe nausea, diarrhea, vomiting, and dehydration were more vulnerable to serious kidney problems. Some patients even needed dialysis.
5. Hypersensitivity
Some patients may experience anaphylaxis or severe allergic reactions, and angioedema or swelling of the skin.
6. Acute Gallbladder Disease
In research trials, 1.5% of patients on the 0.5 mg dose and 0.4% on the 1 mg dose developed cholelithiasis or gallstones.
These severe side effects are rare, so consult your healthcare provider promptly if you experience these symptoms.
7. Thyroid C-Cell Tumors
It hasn’t been determined yet whether this risk applies to humans, but in animal studies, some rodents that took Ozempic developed medullary thyroid carcinoma (MTC).
Patients who are diagnosed with MTC — or genetically predisposed to it — and multiple endocrine neoplasia syndrome type 2 (MEN 2) are at an elevated risk of developing thyroid tumors when taking Ozempic. That’s why medical evaluation is crucial before treatment starts.
Long-Term Side Effects of Ozempic
Long-term use of Ozempic is also associated with some negative health and physical consequences.
1. Ozempic Face
Ozempic face describes the “aging” facial appearance that happens when you lose weight rapidly with Ozempic. Signs include sunken eyes, wrinkles, a gaunt look to the face, and drooping skin around the jawline and neck.
If you’re obese and lose weight faster than your skin can adjust to your changing body size, you’re more likely to develop Ozempic face.
2. Ozempic Butt
Ozempic can’t target weight reduction in specific areas. When you take the injections, you’ll lose weight throughout your body, including the butt.
Ozempic butt is similar to Ozempic face but affects your bottom. You’ll notice the skin on your glutes sag or droop, resembling thin, crepey skin. Your butt is also less round and plump.
3. Ozempic Breast
Breasts are mainly composed of fatty tissue. When you use Ozempic, you can lose several pounds quickly, which also changes your breasts’ size, shape, and texture. Ozempic breast affects primarily women. Symptoms include sagging skin and loss of volume around the breast area.
You can prevent Ozempic face, Ozempic butt, and Ozempic breast by losing weight at a slow yet steady pace. One way to do this is by sticking to lower doses of semaglutide to allow the skin to shrink to the new body size.
4. Sarcopenia
Studies have proved that taking GLP-1 medications like Ozempic may cause sarcopenia. A person with sarcopenia loses muscle mass gradually, leading to reduced bone density and lower resting metabolic rate. It often happens to patients who rely on Ozempic for weight loss and don’t exercise or eat a healthy diet during treatment.
Gender-specific Side Effects: Females vs. Males
Sometimes, Ozempic may cause adverse reactions unique to men or women.
Hormone Imbalance in Women
Researchers have yet to determine whether Ozempic lowers or raises estrogen levels. However, the fat cells store and process sex hormones, including estrogen. Therefore, losing the fat deposit rapidly due to Ozempic may result in an imbalance of estrogen.
Ozempic may also cause congenital disabilities and miscarriages in pregnant women.
Increased Risk of Erectile Dysfunction in Men
In a study, men aged 18 to 50 without diabetes took semaglutide for weight loss. Researchers found they were 1.5% more likely to develop erectile dysfunction and hypogonadism or low levels of sex hormones.
Researchers expected that losing weight would improve the symptoms of erectile dysfunction, but this study’s finding proves otherwise.
Tips to Minimize Ozempic Side Effects During Treatment
Fortunately, several strategies can help alleviate the side effects of Ozempic and make them more manageable. Here are some tips.
- 1
Start With the Lowest Dose
Ozempic comes in four different doses. Doctors typically begin with the lowest dose of 0.25 mg to see how your body responds to the medication before titrating gradually. This slow adjustment mitigates the risk of severe side effects. - 2
Eat Smaller Meals
If you have nausea, eating a large meal can only worsen it. Instead, eat small portions during meals and have healthy snacks throughout the day. Additionally, consume only foods easy on your gut, like fruits and vegetables. Some foods to avoid while on Ozempic are greasy, high-fat, and spicy foods that can trigger stomach discomfort. - 3
Avoid Lying Down After Eating
Lying down after meals may cause acid reflux and worsen nausea. Wait for at least an hour before lying on your back. - 4
Stay Hydrated
Drink lots of water, especially if you experience diarrhea or vomiting that drains your body of its fluid reserves. These symptoms can cause dehydration and put your kidneys at risk. Apart from water, you can eat hydrating fruits or vegetables like watermelon or cucumber. - 5
Manage the Side Effects With Natural Remedies
If you feel constipated, eat fruits and vegetables loaded with fiber. If you have nausea, try drinking ginger tea or using aromatherapy. Your doctor can prescribe anti-nausea medication, but try to manage the symptoms with natural remedies first. In many cases, they work effectively. - 6
Rotate Injection Sites
Switch between your thigh, abdomen, or upper arm to prevent irritation in the injection site. - 7
Communicate With Your Doctor
Talk to your doctor if the adverse reactions are severe or have persisted for several weeks. They may adjust your dose, prescribe additional medication, or offer other health solutions tailored to your condition.
Most side effects from Ozempic can be minimized with the right approach.
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Is Ozempic Worth the Risk?
Understanding the side effects of Ozempic before you start treatment will help you assess whether it’s worth trying. While many of these health consequences are mild and temporary, you shouldn’t overlook the serious risks associated with using Ozempic. Your doctor will discuss it during your consultation.
The most important thing during treatment is communicating openly with your healthcare provider. They can promptly address any concerns or new symptoms to improve your experience with Ozempic.
If you have more questions or concerns about the side effects, don’t hesitate to discuss them with your doctor. It’s the only way they can help improve your symptoms.
