Alcohol may also interact with muscle relaxants, antibiotics, or anti-inflammatory drugs prescribed around the time of the injection
This can happen for several reasons
138,139 Uricosuric agents act on the proximal tubule of the kidney by inhibiting the reabsorption of uric acid or enhancing its excretion
Broad-spectrum antibiotics like fluoroquinolones and macrolides can reduce gut bacterial diversity, potentially affecting medication absorption and gastrointestinal function
In February 2026, the UK MHRA issued an alert about falsified Mounjaro KwikPen 15 mg pre-filled pens in the UK supply chain
Summary: L-carnitine pills are widely used for weight loss, but clinical evidence shows only modest, short-term reductions in body weight, and neither NICE nor the NHS recommends them as part of any weight management pathway