I believe, after some investigation:
> ℞ brandy ℥iii in XXIV hours. Fed per rectum with peptonized milk.
℞ designates a prescription
℥ is an apothecary symbol denoting 'ounce' so 3 ounces per 24h
Peptonized milk 'per rectum' was apparently a common method of nutrition for those unable or struggling to eat normally