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Someone posted that they've been using injectable weight-loss drugs (they call them "pinning") for a little over a month and are feeling unwell. They say they’re on small doses of Mounjaro and two other peptides (Reta and Glow, which sound like brand or compound nicknames). Their appetite is almost gone, which they like, but they feel nauseous, can’t tolerate food or protein shakes, have no energy, and feel weak. Symptoms got worse after the most recent injection five days ago, and the person plans to reduce their dose. Mounjaro (generic name tirzepatide) and drugs like it are medications that mimic hormones your gut releases after you eat. Those hormones normally tell your brain “you’re full,” slow how fast your stomach empties, and change how your body handles blood sugar. Many people use these drugs because they reduce appetite and can produce weight loss. The other names in the post, like Reta and Glow, are not standard drug names I can verify from the snippet — they might be nicknames, compounded peptides, or brand names used by the poster. That uncertainty matters because different peptides can act differently and have different risks. The real-world report here is an anecdote — a single person’s experience, not a controlled study. They describe strong appetite suppression, nausea, dislike of protein shakes, low energy, and weakness. Those effects are consistent with known side effects of drugs that slow stomach emptying and reduce appetite; people often report nausea, vomiting, or low energy, especially when doses are changed. But one person’s experience doesn’t tell us how common or how severe these reactions are overall, and the mention of multiple products makes it harder to know which drug is responsible. Why this matters: if you or someone you know is trying these medications, this post highlights common trade-offs — appetite loss and weight effects can come with nausea, trouble eating enough protein, and low energy. That matters because inadequate protein and calories can make you weak or lightheaded, and feeling sick can make it hard to stick with a plan. If doses seem to make symptoms worse, as this person plans, lowering the dose or changing timing can sometimes help. Talking with a clinician is important to adjust dosing safely and to make sure nothing else is causing the symptoms. Caveats and risks: this is a personal report, not medical advice. Nausea, vomiting, and low energy are known side effects of GLP-1 or dual-agonist drugs like tirzepatide; other peptides may have different effects. Compounded or unregulated "peptide" products can vary in purity and strength, increasing risk. People with diabetes, pregnant or breastfeeding people, or those with certain medical conditions should not start or change these drugs without medical supervision. If someone can’t keep down food or becomes very weak, dizzy, or dehydrated, they should contact their healthcare provider or seek urgent care. Bottom line: appetite-suppressing peptides can work but often come with nausea and low energy; if symptoms are severe or worsen after dosing, talk to a clinician and don’t adjust doses on your own.
Source: r/Peptides