Beta-blockers, certain blood pressure medications, antihistamines, and some pain medications are known to cause fatigue
Hair loss (androgenic alopecia)
According to Harvard Health , low blood sugars are known to damage the hippocampusthe memory center of the brain. Additionally, diabetes is a risk factor for heart disease and high blood pressure, both of which can lead to stroke

Other factors that may contribute to nausea during retatrutide treatment include: Central nervous system effects : GLP-1 receptors are present in brain regions involved in nausea and vomiting, including the area postrema, and activation of these pathways is thought to contribute to the emetogenic effects of this drug class [15] [16] Dose escalation : Rapid increases in dose are more likely to provoke symptoms than gradual titration Individual variability : Genetic, metabolic, and lifestyle factors can influence how sensitive a person is to these effects Dietary habits : Eating large, fatty, or rich meals may worsen nausea in those taking GLP-1-based therapies These mechanisms are not unique to retatrutide and are shared to varying degrees across the entire class of incretin-based medicines