I picked the Asda online website to C&P this from but you can find the same info plenty of other places. Yes, it's listed as a side effect but that doesn't mean the mounjaro itself is causing it which means the size of dose will at most only indirectly affect it in the sense that it might affect how fast you lose weight.
\Does Mounjaro cause hair loss?
Yes, hair loss is listed as a common side effect of Mounjaro when it is used for weight management, affecting up to 10% of people. In a 2022 study, hair loss was reported in 4.9 to 5.7% of people taking the 5, 10, or 15mg dose of tirzepatide.
However, experts believe that it may not be the medication itself that is causing hair loss, but the rate at which you are losing weight. If you lose weight rapidly, your body can recognise this as a form of stress, causing hair loss.
Is hair loss a side effect of Mounjaro?
Although hair loss or alopecia is listed as a Mounjaro side effect, it may not be the medication itself that causes it. Instead, experts believe that the significant weight loss caused by GLP-1 medications, like Mounjaro and Wegovy, triggers a condition called telogen effluvium.
Telogen effluvium is a temporary condition where a significant number of hair follicles enter their resting phase early, causing increased shedding. In general, the shedding in acute telogen effluvium lasts for no longer than 6 months, and in some cases, it’s a lot less.