Some medicines are not suitable for people with certain conditions, and sometimes a medicine may only be used if extra care is taken. For these reasons, before you start taking co-amoxiclav it is important that your doctor knows:
- If you suspect you may have glandular fever.
- If you have an allergic condition, or if you have ever had an allergic reaction to a medicine. This is especially important if you have ever had a bad reaction to any penicillin antibiotic.
- If you are pregnant or breast-feeding. Co-amoxiclav is not known to be harmful to babies; however, it is still important that you tell your doctor if you are expecting or breast-feeding a baby.
- If you have any problems with the way your liver works, or problems with the way your kidneys work.
- If you are taking any other medicines. This includes any medicines you are taking which are available to buy without a prescription, such as herbal and complementary medicines.
If you are taking the contraceptive pill at the same time as this antibiotic, the effectiveness of the pill can be reduced if you have a bout of being sick (vomiting) or diarrhea which lasts for more than 24 hours. If this should happen, ask your doctor or pharmacist for advice about what additional contraceptive precautions to use over the next few days. There is no need to use additional precautions for any bouts of sickness or diarrhea which last for less than 24 hours.
Co-amoxiclav may stop the oral typhoid vaccine from working. If you are having any vaccinations, make sure the person treating you knows that you are taking this antibiotic.