An injection pen is a device, often pre-filled or using a replaceable cartridge, designed to make self-injection of certain fertility medicines, such as some gonadotropins, more straightforward and consistent than drawing up medicine from a vial. Pens are dialled or set according to the clinic's instructions for that specific prescription. Different brands of injection pens vary in how they are set up, primed and used, so patients should follow the specific instructions given by their clinic, pharmacist and the manufacturer's leaflet for the exact pen device they have been prescribed, rather than assuming all pens work identically. Used pen needles are sharps and should be removed and disposed of safely after each use, following local biomedical waste disposal guidance and pharmacist advice.
Also known as: fertility pen device, pre-filled pen
Related India guides
Sources
- ICMR Standard Treatment Workflows (icmr.gov.in/standard-treatment-workflows-stws)
- Central Drugs Standard Control Organisation (cdsco.gov.in)
Last reviewed: 9 September 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.