Allergy medications cephalexin 500mg without a doctor prescription include:antihistamines like diphenhydramine (Benadryl)corticosteroidscetirizine (Zyrtec)loratadine (Claritin)cromolyn sodium (Gastrocrom)decongestants (Afrin, Suphedrine PE, Sudafed)leukotriene modifiers (Singulair, Zyflo)Singulair should only be prescribed if there are no other sui… Read More