SN instructed patient / caregiver regarding medication Levaquin. SN taught patient / caregiver that levaquin is an antibiotic and that it is used to treat bacterial infections. SN explained to patient that taking levaquin can make the skin more sensitive to sunlight and also may cause swelling or tearing of a tendon. SN explained to patient / caregiver that the side effects of this medication includes headache, nausea, constipation, diarrhea, difficulty sleeping, dry mouth and ear problems. SN instructed patient to notify physician ( MD ) if experiencing persistence or worsening of side effects.