ANTIBACTERIALS
PENICILLIN

Some examples are:

penicillin V / VEETIDS

amoxicillin / TRIMOX, AMOXIL

ampicillin / PRINCIPEN, OMNIPEN

Interaction
Food: Take on an empty stomach, but if it upsets your stomach, take it with food.

QUINOLONES

Some examples are:

ciprofloxacin / CIPRO

levofloxacin / LEVAQUIN

ofloxacin / FLOXIN

trovafloxacin / TROVAN

Interactions
Food: Take on an empty stomach one hour before or two hours after meals. If your stomach gets upset, take it with food. However, avoid calcium-containing products like milk, yogurt, vitamins or minerals containing iron, and antacids because they significantly decrease drug concentration.

Caffeine: Taking these medications with caffeine- containing products (e.g., coffee, colas, tea, and chocolate) may increase caffeine levels, leading to excitability and nervousness.

CEPHALOSPORINS

Some examples are:

cefaclor / CECLOR, CECLOR CD

cefadroxil / DURICEF

cefixime / SUPRAX

cefprozil / CEFZIL

cephalexin / KEFLEX, KEFTAB

Interaction
Food: Take on an empty stomach one hour before or two hours after meals. If your stomach gets upset, take with food.

MACROLIDES

Some examples are:

azithromycin / ZITHROMAX

clarithromycin / BIAXIN

erythromycin / E-MYCIN, ERY-TAB, ERYC

erythromycin + sulfisoxazole / PEDIAZOLE

Interaction
Food: Take on an empty stomach one hour before or two hours after meals. If your stomach gets upset, take with food.

SULFONAMIDES

An example is:

sulfamethoxazole + trimethoprim /BACTRIM, SEPTRA

Interaction
Food: Take on an empty stomach one hour before or two hours after meals. If your stomach gets upset, take with food.

TETRACYCLINES

Some examples are:

tetracycline / ACHROMYCIN, SUMYCIN

doxycycline / VIBRAMYCIN

minocycline / MINOCIN

Interaction
Food: Take on an empty stomach one hour before or two hours after meals. If your stomach gets upset, take with food. However, it is important to avoid taking tetracycline / ACHROMYCIN, SUMYCIN with dairy products, antacids and vitamins containing iron because these can interfere with the medication's effectiveness.

NITROIMIDAZOLE

An example is:

metronidazole / FLAGYL

Interaction
Alcohol: Avoid drinking alcohol or using medications that contain alcohol or eating foods prepared with alcohol while you are taking metronidazole and for at least three days after you finish the medication. Alcohol may cause nausea, abdominal cramps, vomiting, headaches, and flushing.

ANTIFUNGALS

Some examples are:

fluconazole / DIFLUCAN

griseofulvin / GRIFULVIN

ketoconazole / NIZORAL

itraconazole / SPORANOX

Interaction
Food: It is important to avoid taking these medications with dairy products (milk, cheeses, yogurt, ice cream), or antacids.

Alcohol: Avoid drinking alcohol, using medications that contain alcohol, or eating foods prepared with alcohol while you are taking ketoconazole/NIZORAL and for at least three days after you finish the medication. Alcohol may cause nausea, abdominal cramps, vomiting, headaches and flushing.