Common Side Effects (Experienced by 20%+ of Patients): Gastrointestinal Effects: Nausea: Frequency: 30-44% depending on medication When: Most common during dose increases Duration: Usually peaks within 2-3 days of injection, improves by day 5-6 Timeline: Most severe first 2 months, significantly better by month 3-4 Management: Eat smaller, frequent meals Avoid fatty, greasy, spicy foods Stay hydrated with clear fluids Ginger tea or ginger candies Inject before bed (sleep through worst nausea) Anti-nausea medication if severe (ondansetron, promethazine) Diarrhea: Frequency: 19-30% of patients Usually mild to moderate Often improves after first month Management: Increase fiber gradually Stay hydrated with electrolyte drinks Avoid trigger foods (dairy, caffeine, high-fat) Probiotics may help Anti-diarrheal medication if severe (loperamide) Constipation: Frequency: 10-24% of patients Due to slowed GI transit Management: Increase water intake (64-80 oz daily) Add fiber-rich foods Regular physical activity Stool softeners if needed (docusate) Magnesium supplements Miralax for occasional use Vomiting: Frequency: 9-24% of patients Less common than nausea Usually during dose escalation Management: Same strategies as nausea May need to slow dose escalation Contact provider if cant keep fluids down Abdominal Discomfort: Frequency: 8-20% of patients Usually mild bloating or cramping Related to slowed digestion Management: Smaller portions Avoid gas-producing foods Gentle movement after meals Heat pad for comfort Other Common Side Effects: Fatigue: Frequency: 10-15% of patients Often related to reduced calorie intake Management: Ensure adequate protein (80-100g daily) Dont restrict calories too severely Regular sleep schedule Light exercise can boost energy Headache: Frequency: 10-14% of patients Usually mild and temporary Management: Stay hydrated OTC pain relievers (acetaminophen, ibuprofen) Usually resolves after first few weeks Injection Site Reactions: Frequency: 5-10% of patients Mild redness, itching, or swelling Management: Rotate injection sites Allow medication to reach room temperature before injecting Ice area before/after injection Usually resolves within days Serious Side Effects (Rare but Important): Pancreatitis: Risk: Less than 1% of patients Symptoms: Severe abdominal pain radiating to back, nausea, vomiting, fever Action: Stop medication immediately, seek emergency care Outcome: Usually resolves after discontinuation Gallbladder Problems: Risk: 1-2% of patients Cause: Rapid weight loss increases gallstone risk Symptoms: Right upper abdominal pain, nausea, fever Action: Seek medical evaluation May require gallbladder removal in severe cases Kidney Problems: Risk: Rare, usually from severe dehydration Symptoms: Decreased urination, swelling, confusion Prevention: Stay well-hydrated, especially during GI side effects Action: Contact provider if symptoms occur Thyroid Tumors (Black Box Warning): Risk: Seen in animal studies, not confirmed in humans Absolute contraindication: Personal or family history of MTC or MEN 2 Symptoms: Lump in neck, difficulty swallowing, persistent hoarseness Action: Report thyroid symptoms to provider immediately Hypoglycemia (Low Blood Sugar): Risk: Low when GLP-1s used alone Higher risk: When combined with insulin or sulfonylureas Symptoms: Shakiness, sweating, confusion, dizziness, rapid heartbeat Prevention: Diabetes medication doses may need reduction Action: Treat with fast-acting carbs, contact provider about dose adjustments Allergic Reactions: Risk: Very rare Symptoms: Difficulty breathing, facial swelling, severe rash, throat tightness Action: Seek emergency care immediately Contraindication for future use Side Effect Timeline: First Week: Mild nausea possible Reduced appetite begins GI changes starting Injection site learning curve Weeks 2-4: Side effects may intensify Nausea peaks for many GI symptoms most noticeable Fatigue from calorie reduction Weeks 5-8: Dose increase may temporarily worsen side effects But overall improvement from week 4 Body adapting to medication Most patients feeling better Weeks 9-12 and Beyond: Significant improvement in side effects GI symptoms mild or resolved Appetite suppression sustained Most patients tolerating well For many patients, the worst side effects are weeks 2-6, with major improvement after 2 months
Once activated within the cell, these enzymes proceed to cleave a range of intracellular targets, resulting in the orderly disassembly of cellular structures and the formation of apoptotic bodies
Effect of furosemide on insulin and glucagon responses to arginine in normal subjects
However, the mechanism by which the ROS signal reaches its target protein in the face of highly reactive and abundant antioxidants in the cell is not fully understood (Reczek and Chandel, 2014)
Once the weekly milligram target is set, reconstitution determines only the concentration and syringe draw not the dose itself
The choice of carnitine is very individual
