Benylin Cold & Flu Day & Night Max Strength Capsules Benylin Cold & Flu Day & Night Max Strength Capsules help to relieve the symptoms of cold & flu, including aches & pains, sore throat, headache, blocked nose & fever. The day capsules can also relieve tiredness & drowsiness. Both the day & night capsules contain: Paracetamol: an analgesic & antipyretic which helps to relieve pain & fever. Phenylephrine hydrochloride: a decongestant to reduce swelling in the passages of the nose to help you breathe more easily. The day capsules also contain: Caffeine: provides relief from fatigue (tiredness) associated with colds & flu & can also increase pain relief from paracetamol. Benylin Cold & Flu Day & Night Max Strength Capsules are suitable for adults & children aged 12 years & over.