CommunityCompound Experiences

Any similar experiences with Retatrutide?

19 replies7 peopleApr 16, 2026☆ Follow
Summary

Why does dizziness happen on Retatrutide and how do people fix it while staying on the drug?

Users report that Retatrutide initially improves pain, weight, and labs but later brings dizziness tied to low calories, insufficient carbs, electrolyte loss from the drug's diuretic effects, and rapid activity increases. Raising total food intake, adding carbs and protein at meals, and adjusting fluids and electrolytes often resolve the symptoms. Several participants stayed on or returned to Reta after these changes and continued losing weight steadily at 6 mg.

What this discussion establishesStill open

Whether the dizziness started from a new vial or from the combination of lower calories and higher activity

Nothing here is advice.

19 replies · 7 people
BlueSparrow51archiveopening postApr 16

I used Retatrutide for roughly five months. At first it worked great, taking away sciatic pain, dropping thirty pounds quickly, and improving blood work including ApoB and BUN. Later I developed ongoing dizziness and could not stay hydrated no matter what. I could not tell if it was the medication itself or something from a fresh bottle, and the problem continued even at two milligrams. I stopped it to clear out and tried Tirzepatide instead. The heart-rate rise made me uneasy even though it stayed mild until six milligrams, so I preferred to wait until trials finish and confirm it is a known safe effect. I am waiting on lab results before starting anything new. I have already lost most of the weight I wanted and now want to build muscle, keep food noise down, and maintain good insulin sensitivity. Health numbers matter more than further scale weight, though I still have about twenty pounds of fat to lose. Another choice would be to restart Retatrutide but stay at lower doses to avoid heart-rate changes.

NorthCinder50archiveApr 16

Hello! Are you tracking your daily calorie intake? This happens to me often when I do not eat enough or on fasting days.

BlueSparrow51archiveApr 16
↳ replying to @NorthCinder50

It could be that. My calories were pretty low, probably seven or eight hundred under maintenance. At two hundred thirty pounds and twenty percent body fat I was eating two thousand to twenty-two hundred a day while staying very active. I did not even consider that possibility.

NorthCinder50archiveApr 16

That is probably the cause. You are staying hypoglycemic. You need to eat enough to feel better. Twenty-five to thirty grams of protein plus healthy carbs with each meal should reduce the dizziness.

PlainAlder11archiveApr 16

My sodium and chloride came back low on the last two blood tests. Turns out I was drinking too much water and flushing electrolytes out. I was waking five or six times a night to urinate and slept poorly, often up at four in the morning unable to fall back asleep. After the doctor visit on Monday I cut way back on plain water and now drink one sugar-free Gatorade or half a Liquid IV packet daily. The Gatorade gives two hundred fifty milligrams sodium and fifty milligrams potassium; the Liquid IV gives five hundred sodium and three hundred seventy potassium, so I split one packet across two bottles. Both supply other electrolytes too. We had started a diet at the start of the year and I thought extra water would help, but it did not. Sleep was a little better last night though I still got up four times. Hopefully it keeps improving.

BlueSparrow51archiveApr 16
↳ replying to @PlainAlder11

I was already using Redmond Relyte every day plus Gatorade Zero and it still was not enough. Carbs help retain water, and my carb intake may have been too low as well. I stayed in ketosis by both blood and urine tests even at seventy to eighty grams of carbs daily. My labs showed normal sodium and chloride, but that test happened on a day without symptoms so I cannot be sure the numbers reflected how I usually felt.

PlainAlder11archiveApr 16

I will see my regular doctor Monday and expect another blood test in four to six months. My cardiologist went over the water and sodium balance on Monday during the yearly check. The little guy found my blood test results at the lab.

NorthKettle44archiveApr 16

From what I have seen, extra carbs help many people with various side effects from Retatrutide. The electrolyte issue is also real. I would try increasing both and go back on Retatrutide to test it. Going back to your early positive experience that later changed, did you switch products? You mentioned a new bottle, was it from a different kit or single vials? Did you reconstitute it yourself and filter it?

BlueSparrow51archiveApr 16
↳ replying to @NorthCinder50

I checked blood sugar often and it was usually fine. I still believe the problem was not blood sugar but something carb-related. Electrolytes and not enough total carbs or calories to rebuild glycogen fast enough probably kept my body from holding water. Once past three milligrams I stayed in low-level ketosis. The glucagon action naturally pushes toward ketosis, which is diuretic on its own, and Retatrutide adds to that, plus another blood-pressure drug I take. When I tried full ketosis everything went wrong fast. Long story short, I will never do ultra-low carb on Retatrutide again. I felt like I was going to die, no exaggeration. I got in the car to head to the ER, hit a twelve-mile traffic jam from an accident, turned around after forty minutes, bought a sugary Gatorade, and felt better within two minutes. It was a miserable time sitting in traffic with heart rate at one hundred fifty. My blood sugar reading was actually high, so the relief was not from correcting low sugar.

BlueSparrow51archiveApr 16
↳ replying to @NorthKettle44

It was the same company and original order, just a new vial. I cannot be sure the side effects started exactly with that vial. I think they did, but it might be coincidence. Around the same time I also ramped up activity a lot without increasing calories. The more I talk it through here the more I think the calorie and activity change was the bigger factor. I am now convinced that is it. Good news is I can restart Retatrutide. I really did not want to stop. I just needed the dizziness to end. Constant worry about dying or getting seriously ill, plus feeling dizzy from morning until night with only random short breaks, was not enjoyable.

BlueSparrow51archiveApr 16
↳ replying to @PlainAlder11

I'm wondering about the amount you're taking.

BlueSparrow51archiveApr 16
↳ replying to @PlainAlder11

Sorry for all the questions, but one more. I reached six milligrams and my bowels stopped moving. What was your titration schedule?

PlainAlder11archiveApr 16
↳ replying to @BlueSparrow51

No problem. Two, four, six, each for four weeks. I actually did five weeks at four milligrams but stalled so moved to six. Tomorrow morning will be the fifth dose at six milligrams and it still feels good. I am losing one and a half to two pounds a week. My wife had the no-poop issue the first week at two milligrams but it went away. I do not remember exactly what she did to fix it. We still get occasional heartburn at bedtime when lying down.

BlueSparrow51archiveApr 16
↳ replying to @PlainAlder11

That is interesting. Four milligrams was exactly where I stalled too. I think the stall occurs because the glucagon effect stays mild until you reach five or six milligrams and higher. At lower doses the weight loss happens the same way it does on Tirzepatide. How did things go once you hit six milligrams? Did the stall end?

NorthKettle44archiveApr 16
↳ replying to @BlueSparrow51

Fiber plus water, fiber plus water, fiber plus water.

PlainAlder11archiveApr 16
↳ replying to @BlueSparrow51

Yes, right away. Weight stayed flat for a little over a week. I would have to check my spreadsheet for the exact numbers. At six milligrams it has been steady one and a half to two pounds a week, and BMI and body-fat percentage drop about a tenth to two-tenths of a point weekly. My main weigh-in and shot day is tomorrow morning. I also check weight on Tuesdays.

SteadyAlder89archiveApr 16
↳ replying to @NorthKettle44

Maybe add some magnesium too. I take it at night and am ready in the morning. Ground flaxseed in my shake helps as well.

CopperSignal27archiveApr 17

Dizziness is a vague symptom that can have many causes during weight loss. Is it related to posture? Does it improve if you sit or lie down? You mentioned blood-pressure medication. Do you have a monitor? Have you checked sitting versus standing readings? It might not be postural hypotension, but that is common with weight loss from any cause and Retatrutide itself lowers blood pressure somewhat. What is your daily calorie intake? Are you trying to lose weight faster than your body tolerates? You have already considered electrolytes, fluid, and blood sugar, so I am just checking whether blood pressure or simply not enough calories might also be factors.

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