Just because a medicine is available without a prescription doesn't mean it's safe to take. Take this quiz and learn the ins and outs of over-the-counter (OTC) medicines.
1. How are prescription medicines different from OTC ones?
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Prescription medicines require a doctor or other healthcare provider to monitor both how well they work and possible side effects.
2. You should follow certain safety steps when you self-treat with OTC medicines. What should you do?
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3. Aspirin can cause problems with which of these conditions?
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Aspirin and other salicylates can bring on severe asthma attacks in sensitive people. People with nasal polyps also may have breathing problems. Others at risk are those who have high blood pressure. Children and teens shouldn't be given aspirin because of its link to Reye syndrome, a potentially fatal illness.
4. People allergic to aspirin may also be allergic to which other OTC medicines?
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Allergic reactions may include a rash, itching, and breathing problems.
5. How long can you safely take nonsteroidal anti-inflammatory drugs (NSAIDs) and other OTC medicines such as acetaminophen, before seeing a healthcare provider for a diagnosis?
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Keep track of how many days in a row you take aspirin, ibuprofen, naproxen, or acetaminophen. If you're still having problems after 7 to 10 days, see your healthcare provider. Get medical care sooner if your symptoms do not start to improve or get worse during those 7 to 10 days.
6. Acetaminophen is less likely than aspirin to cause gastric distress. But an overdose of as little as 4 grams over 24 hours can lead to irreversible liver disease. Who is most at risk?
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If you take more than an occasional dose of acetaminophen, don't drink alcohol. Overdoses of acetaminophen alone are toxic to the liver. Alcohol in combination with advised dosages of acetaminophen may be toxic to the liver.
7. Antacids often are taken for digestive problems. What is the greatest danger?
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Antacids can increase or decrease the rate that other medicines are absorbed, or how well they are absorbed, or both. Another danger with taking antacids for long periods without a diagnosis is that they may mask a more serious problem. This can include conditions such as an ulcer, or esophageal or stomach cancer.
8. Older adults are especially vulnerable to the side effects of which of these OTC medicines?
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Antihistamines block histamine receptor sites, and older adults may have pronounced side effects, such as confusion, a dry mouth, lightheadedness, and problems with peeing. A side effect of antihistamines is the blocking of a chemical neurotransmitter called acetylcholine. Older adults make less acetylcholine and can't use it as well.
9. Many OTC medicines for children come in liquid form. What is the best way to measure the dose?
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Kitchen utensils aren't accurate for measuring medicine doses. Medicine or dosing spoons may look like wide straws with a spoon at one end. They are designed for children who can drink from a cup but are likely to spill. Measure the dose at eye level. Keep a written record of when you give the dose. This can prevent both missing a dose and accidentally overdosing a child.
10. What should you look for when you select an OTC medicine?
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Multi-symptom medicines expose you to medicines you don't need. This increases the risk for side effects. Ask the pharmacist for help in choosing the safest and most effective OTC medicine for your symptoms.
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Author: Floria, Barbara
© 2000-2025 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
