There are needle exchanges offered by the following pharmacies in Westminster - clicking on the highlighted text will link to show their opening times;
- Benson Pharmacy
 276 Harrow Road, London W2 5ES
- Boots the Chemist
 44-46 Regent Street, London W1B 5RA
- Browns Chemist
 195 Shirland Road, London W9 2EU
- Devonshire Pharmacy
 215 Edgware Road, London W2 1ES
- Keencare Pharmacy
 6 Lower Belgrave Street, London, SW1W 0LJ
- Market Chemists
 91-93 Church Street, London NW8 8EU
- Portmans Pharmacy
 93-95 Tachbrook Street, London SW1V 2QA
- Superdrug
 49-50 The Strand, London WC2N 5LL
- Victoria Pharmacy
 58 Horseferry Road, London SW1P 2AF
- Warwick Pharmacy
 34-36 Warwick Way, London SW1V 1RY
- Watsons Pharmacy
 1 Frith Street, London W1D 3HZ
