Crushing tablets or opening capsules

You can ask your GP or pharmacist if your tablets can be crushed, or your capsules opened and dispersed in water, before taking them. Only certain tablets or capsules can be given this way.

The following preparations should never be crushed without seeking professional advice first:

  • CR or CRT (controlled release, or controlled release tablet)
  • LA (long-acting)
  • SR (sustained release)
  • TR (time release)
  • TD (time delay)
  • SA (sustained action)
  • XL (extended release)

These medications are designed to be released over a predetermined period of timefor example, 12-24 hours.

Generally, when crushing a tablet or opening a capsule, the dose is released over 5-10 minutes, resulting in an initial overdose (and a higher chance of side effects), followed by a period without medication.

Content supplied by the NHS Website

Medically Reviewed by a doctor on 21 Dec 2018