Amoxicillin (as trihydrate ... Potentiated by probenecid. Monitor use with oral anticoagulants; may need dose adjustment. Increased risk of rashes with allopurinol. May antagonize oral contraceptives.

amoxicillin + clarithromycin ... Take at least 1hr before a meal. Oral: 2.5mg and 5mg strengths: mix contents of packet with 5mL of water, leave 2–3 mins to thicken, then stir and drink within ...