Who should not take quinine water?

Quinine water should not be taken by individuals who are allergic to quinine or have a history of hypersensitivity reactions to it. It is also contraindicated for those with certain medical conditions, such as severe liver or kidney disease, or those taking medications that can interact negatively with quinine, such as certain anticoagulants. Pregnant or breastfeeding women should consult a healthcare provider before using quinine water. Always seek medical advice before consuming quinine-based products.