The absence of any shared receptor also removes the usual tool for predicting combination behavior: when two agents converge on one target you can reason about competition, cooperativity or occupancy, and when they do not, there is nothing to reason from
Side Effects and Safety Profile Reported side effects at standard 250-500 mcg dosing are mild and infrequent: injection site redness, mild fatigue, headache, and occasional nausea at higher oral doses
[9] Unopened vials of Bacteriostatic Water for Injection have a long shelf life, usually on the order of 2-3 years from the date of manufacture (check the expiration date on the vial)
Always seek help of a professional doctor in case of an medical emergency or ailment.
There are several techniques in providing hand injections
Also, plunging syringe too fast can hurt