In addition to tablets for oral administration, stanozolol is also available as water based suspension for injection. Because it is not esterified, this steroid needs to be injected every day. Also, water based injections are a lot more prone to bacterial contamination so more care is needed to keep a multi-use bottle sterile. The relatively large crystal size of some preparations limits the size of needle that can be used because the crystals will jam smaller needles. There are some formulations available that have smaller crystal size; however, these seem to have a shorter half-life – most likely due to the crystals dispersing faster within the muscle. Because it is C-17 alpha alkylated, stanozolol has the potential for liver toxicity though this is somewhat reduced with the injectable form because a lower dose is often used. Stanozolol has a favorable anabolic to androgenic ratio but most do not consider it to be very effective. This is largely due to the fact that stanozolol does not result in large water weight gains.