Make sure to alert your dentist before your appointment begins that you would like to avoid Epinephrine. There are Epinephrine-free medications. If bleeding will be an issue for your dentist, ask about a topical gel that can be used to help control bleeding for whatever procedure that's being done. Do not take antacids with antibiotics as they decrease the absorption of the drug. Alert your physician, pharmacist, and nurse as to other medications you're taking.
Many drugs interact with antibiotics.
You can avoid having diarrhea by taking lactobacillus tablets, or by eating 4 to 8 ounces of yogurt per day. Taking these particular precautions is especially important if you're going to be on antibiotics for any length of time other than just for a dental appointment or similar procedure. The right doctor can make the difference between feeling confident in your medical care, and feeling like you have no say in what happens to you. It is important to find a doctor that really listens to you and respects your feelings and beliefs. The shakiness and diarrhea that soon followed the dizziness was surely due to my panicking at the belief that I was about to die.