Giving injections is one of the most important skills that you will need to develop if you intend owning alpacas.
Alpacas require regular vitamin and mineral supplements, vaccinations and drenches.
Some drenches can be administered orally but many are injectable. Many of the required mineral and vitamin supplements are most effectively administered by injection.
In addition to routine husbandry injections you may find that you will be required to administer a variety of veterinary medicines prescribed by veterinarians. The reality is that fewer and fewer vets are prepared to attend farms to treat livestock, so it is important that alpaca owners realise that these tasks are more often than not the responsibility of the owner.
Although many alpaca shearers and alpaca breeders will often assist new alpaca owners with routine husbandry requirements, there will be occasions when alpaca owners have to administer medicines. You may be required to administer antibiotics or other drugs to dams that require treatment post birthing. Other forms of infections and injuries may also require treatment.
The diagram provided by the British Columbia Institute of Technology is an excellent guide to administering injections.