Patients should not use the medication and should contact their healthcare provider or pharmacist if they observe any of the following: For clear solution products (Ozempic, Wegovy, Trulicity, Victoza, Saxenda, Mounjaro, Zepbound, Byetta): Discoloration : The solution appears yellow (beyond slight yellowish tint allowed in some products), brown, or any color other than clear and colorless to slightly yellow (per product-specific labeling) Cloudiness or turbidity : The medication appears hazy, milky, or cloudy rather than clear Visible particles : Any floating particles, crystals, flakes, or sediment are present in the solution For Bydureon BCise (exenatide extended-release): For all products: Frosting or ice crystals : Evidence that the medication has been frozen, even if subsequently thawed Damaged pen or cartridge : Cracks, leaks, or other physical damage to the delivery device Additional circumstances requiring medication disposal include: Exceeded in-use time limits : For multi-dose pens, the medication has been in use longer than the manufacturer's specified period after first use Past expiration date : The printed expiration date has passed Unknown storage history : Uncertainty about whether the medication was properly stored or exposed to temperature extremes Suspected freezing : The medication may have been exposed to freezing temperatures during storage or transport Patients experiencing unexpected hyperglycemia or reduced therapeutic effect should consider the possibility of degraded medication, particularly if storage conditions may have been compromised

If peptides will be used immediately or within the next few days, weeks, or months, short-term refrigeration below 4C (39F) is generally acceptable
This article examines what the science and UK clinical guidance actually say about B12 supplementation and weight loss, identifies who genuinely needs B12 supplementation, outlines safe dosage according to NHS and BNF recommendations, and sets out the evidence-based weight management strategies endorsed by NICE
Maintenance Protocols: How Often Do You Have B12 Injections