Sterile water has no preservative and is strictly for single-use applications, as it can become contaminated after being opened
These include: Lifestyle interventions (dietary advice, physical activity programmes) Licensed pharmacotherapy such as orlistat, or GLP-1 receptor agonists including semaglutide 2.4 mg (Wegovy, NICE TA875) or tirzepatide (Zepbound) where clinically indicated and available Referral to tier 3 or tier 4 weight management services , including bariatric surgery assessment where appropriate Information on NHS weight management services and eligibility for licensed treatments is available via the NHS website and NICE guidance
There are several factors that are taken into consideration, such as your age, your activity level, your body-fat ratio, your weight loss goals, your metabolic rate, and your overall energy levels
If this falls within the 28-day window, you could use it for a reduced dose or combine it with a fresh vial (by using this remainder first and making up the difference from the new vial)