Are some methods of administering HRT inherently better than others? Audience requested: subcutaneous injections. Subcutaneous means under the skin. In this type of injection, a short needle is used to inject medication Carnisure 1gm Injection 5ml : Price, Uses, Side Effects Netmeds HRT Medics Nutraceutical Injections L CARNITINE INJECTION L CARNITINE 1 GM 5 ML ( L CARNITINE ) 5 X 5 ML IV USE AMPOULES Subcutaneous Injection Sites and Instructions for Safe Self Administration