How likley is it to have a reaction to Dicloxacillin?

It is really hard to say how likely it is for you to have a reaction. Are you generally allergic to medicines, antibiotics, penicillins, etc.?

Even if you aren't you still may get a reaction. The dose you have been given is fine so it just depends on you.

These are the known side effects of Dicloxacillin, so just be aware of the symptoms of a side effect or a severe reaction.

Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Dicloxacillin:

Diarrhea; fever; gas; general body discomfort; heartburn; joint pain; muscle aches; nausea; second infection; stomach pain; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur when using Dicloxacillin:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); black tongue; bloody stools; mouth irritation; severe diarrhea; severe stomach cramps/pain; shortness of breath; sore throat; swollen joints; unusual bleeding or bruising; vaginal irritation or discharge; wheezing.

http://www.drugs.com/sfx/dicloxacillin-side-effects.html

http://www.drugs.com/mtm/dicloxacillin.html