Avoid Caffeine Interaction With Certain Drugs
by Arthur Oken, Savon Global Meds
What you eat and drink can affect the way your medicines work. Caffeine is a central nervous system stimulant and it can interact with certain medicines. Notable high-caffeine foods and drinks include coffee, tea (including powdered mixes), colas, Dr. Pepper, Mountain Dew, energy drinks and bars, dark and milk chocolate candies, chocolate syrup, chocolate desserts, and cocoa. Talk to your doctor if you use foods or drinks with caffeine, as this might affect which medications the doctor will prescribe, or have you avoid or limit the amount of caffeine used.
Your pharmacist is required to attach a “Medication Guide Label” on the medicine package or bottle when you fill medicines that could have serious interactions (including caffeine). The label should tell you about the risks and how to avoid them. Read the information carefully before you use the medicine. If you have any questions, talk to your doctor or pharmacist.
High amounts of caffeine could cause the following side effects with the following medications:
- Bronchodilators (albuterol): Caffeine can increase excitability, nervousness, and rapid heartbeat.
- Cipro (ciprofloxacin): Caffeine may build up in your body.
- Cymbalta (duloxetine): Caffeine can increase the risk of nausea, dry mouth, insomnia, drowsiness, and constipation.
- Methotrexate: Caffeine can cause the drug to fail to relieve rheumatoid arthritis.
- Requip/Requip XL (ropinirole): Caffeine can cause too much ropinirole in the bloodstream leading to confusion, vomiting, weakness, fainting, agitation, and drowsiness.
- Saphris (asenapine): Caffeine can increase blood concentrations of asenapine beyond what is considered safe.
- Vasodilators and blood thinners: Caffeine can interfere with these drugs, lowering the expected results.
Caffeine contains a chemical called tyramine. High levels of tyramine can react with MAOIs (Azilect, Elderpryl, Parnate, Nardil, Selegiline) and can cause a sudden, dangerous increase in your blood pressure. There are many other foods, other than caffeine, that contain tyramine. This will be discussed in another article.
* Source: The USFDA, National Consumer League and the Caffeine Informer