In the following list, you'll find the most common and easily avoided sources of adverse drug reactions concerning antibiotics. Keep this list handy and review it whenever you bring home a new prescription for an antibiotic - even after your doctor and pharmacist have vetted it with you.
There are different classes of antibiotics, and your risk of a drug interaction often increases with the dosage of the drug you take. Antibiotics can be overused, so make sure that taking one is necessary to treat your condition.
- Penicillin and ampicillin interact with grapefruit juice: May reduce [increase] absorption of the antibiotic.
- Tetracyclines interact with minerals such as calcium, magnesium, and aluminum or dairy products: May bind together and prevent absorption, reducing effectiveness of antibiotics.
- Tetracyclines interact with anti-coagulants: Decreases the effects of the blood-clotting medication.
- Erythromycin interacts with theophylline, an asthma drug: Increases levels of the asthma drug.
- Erythromycin interacts with statin drugs such as Lovastatin, as well as many other cholesterol-altering drugs: Increased risk of muscle aches and soreness.
- Erythromycin interacts with anti-convulsant drugs such as carbamazepine: Decreases their excretion and so increases the effect of the anti-convulsant medication.
- Fluoroquinolones (such as Cipro) interact with mineral supplements such as calcium, magnesium, and aluminum: May bind together, reducing the effectiveness of the antibiotics.
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