Taking udiliv with antibiotics might alter the functions of the medications but not grieviously.
If you have been taking udiliv for a longer period now you can stop it.
gall bladder sludge does not require immediate treatment if asymptomatic whereas your fever and other symptoms are a priority at this point of time.
Continue with your antibiotics.
Next Steps
after your complaints subside get a repeat ultrasonography done and you can continue with udiliv if required.
Health Tips
keep in touch with your treating consultant for every complain that you face.