Can amoxicillin clavulanate make my pee darker than usual? ive drank water all day and it was really dark just now?

I wouldn't be concerned if the urine is only a dark yellow but brownish urine is worrisome as liver dysfunction would be a possible cause. Darker yellow is more concentrated urine and will lighten up by increasing your water intake. Since that antibiotic can be tough on the stomach, you may be taking it with food appropriately but not drinking as much fluids as you should.

no- not without an allergic reaction. There can be other causes . drink plenty of water- it should clear up