Beta blockers causing cold hands and feet

These medicines reduce the effect of adrenaline on the heart and blood vessels. That can leave fingers and toes cooler, especially in air conditioning or after sitting still. Mild, symmetrical coolness without colour change may be a medicine effect, but cold extremities can also occur with anaemia, hypothyroidism, iron deficiency anaemia, or reduced leg circulation such as peripheral arterial disease.

Keep your hands and feet warm with layers, comfortable socks, and gentle movement. Record when the sensation began, whether it followed a dose change, and whether numbness, pain, or colour change occurs. Arrange a medication review if it is persistent or troublesome; a clinician may check your pulse, blood pressure, circulation, and blood tests. Never change the dose yourself.

Seek urgent care if one hand or foot suddenly becomes cold, pale, blue, very painful, weak, or numb, or if you develop chest pain, fainting, or severe breathlessness. Contact a clinician promptly for sores that do not heal, worsening pain when walking, or repeated colour changes. These features need assessment rather than assuming the beta blocker is responsible.

Ask whether your beta blocker, dose, or another medicine could contribute; whether your circulation and thyroid or iron levels should be checked; and which symptoms should trigger an urgent call.