Extended or excessive use of certain OTC supplements can lead to damage to the liver or kidneys. These organs play a vital role in detoxification and metabolism, so any harm caused by supplements can have long-term consequences. Individuals with pre-existing liver or kidney conditions are particularly vulnerable and should exercise caution when using OTC supplements.

Allergic reactions

OTC supplements can also trigger allergic reactions in some individuals. Allergies can manifest as skin rashes, hives, itching, or in severe cases, anaphylactic shock. It is crucial to be aware of potential allergens in supplements and seek medical advice if you have a known allergy or experience any allergic symptoms.

Undesired drug-like effects

Some OTC supplements may produce undesired drug-like effects. These effects can range from mild, such as increased heart rate or jitteriness, to more severe outcomes like hallucinations or seizures. Certain supplements marketed as “natural” or “herbal” may contain substances that have psychoactive properties, especially when taken in large doses. It is important to be cautious when using supplements and discontinue use if you experience any unexpected or adverse effects.

Interaction with medical conditions

Individuals with pre-existing medical conditions may be at a higher risk of experiencing adverse effects from OTC supplements. Certain supplements can interact with specific medical conditions or interfere with medications, exacerbating symptoms or compromising treatment outcomes. It is essential to consult with a healthcare professional before starting any new supplement regimen, particularly if you have a medical condition or are taking medications.