Drug Name Erythromycin

Dipyrone is associated with a low incidence of fatal agranulocytosis. In sensitized subjects, cardiovascular collapse can occur, especially after intravenous injection. Therefore, the drug should be restricted to the management of pain refractory to other analgesics. Propyphenazone presumably acts like metamizole both pharmacologically and toxicologically.
Powders exert a drying (evaporative) effect. Lipophilic ointment (oil ointment) consists of a lipophilic base (paraffin oil, petroleum jelly, wool fat [lanolin]) and may contain up to 10 % powder materials, such as zinc oxide, titanium oxide, starch, or a mixture of these. Emulsifying ointments are made of paraffins and an emulsifying wax, and are miscible with water.

 

Thus, only a portion of the drug aerosol (~ 10 %) gains access to the respiratory tract and just a fraction of this amount penetrates the mucosa, whereas the remainder of the aerosol undergoes mucociliary transport to the laryngopharynx and is swallowed.
It is also effective in visceral pain. Its mode of action is unclear, but probably differs from that of acetaminophen and ASA. It is rapidly absorbed when given via the oral or rectal route. Because of its water solubility, it is also available for injection. Its active metabolite, 4-aminophenazone, is eliminated from plasma with a t1/2 of approx. 5 h.