in Clinical Pharmacology & Therapeutics found subcutaneous injection reached peak plasma concentration (Tmax) at 75 minutes versus 38 minutes for IM, but area-under-curve (total bioavailability) was statistically equivalent at 94% versus 97%
& Ghadhban, R
A common trend among celebrities is to opt for these treatments at home without proper medical supervision." She also warned of allergic reactions (anaphylaxis), heart rhythm disturbances, organ overload (liver or kidney), risk of air embolism or infections with home IV use and added that some fat-loss injections or anti-ageing meds can alter metabolism and cause serious imbalances
Dupont, M
Beattie DT, Smith JA, Marquess D, Vickery RG, Armstrong SR, Pulido-Rios T, McCullough JL, Sandlund C, Richardson C, Mai N, Humphrey PP (2004) The 5-HT 4 receptor agonist, tegaserod, is a potent 5-HT 2B receptor antagonist in vitro and in vivo