The yellow phentermine 30mg capsules and the blue Phentermine 30 mg capsules act the same. Blue Phentermine and Yellow Phentermine both have the same activistic component (i.e. Phentermine Hydrochloride). Both of these capsules are manufactured by Eon Labs. The blue/white variant is a nonproprietary for Fastin and the yellow is just a nonproprietary phentermine. As for the 15 mg capsules, they are plainly a glower dosage form of Phentermine that is factory-made by Eon Labs. The 37.5 mg Phentermine is a nonproprietary for Adipex-P that is factory-made by Purepac. The only dispute between the marque name (Adipex-P, factory-made by Gate Pharma) and the nonproprietary is price. The ingredients are the same. The only real differences are the facet (color and pulverize vs. miserly pellets).
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