Is that true of all medication? I take several different types every day and the manufacturers, even the country of origin, vary from prescription to prescription. I would hate to think that they are providing me with something that does not do what it's supposed to do in the exact way it's supposed to it.
Come to think of it as I haven't died yet they must be working OK. I was under the impression that any drug licenced for use in the UK had to pass stringent tests.
DM you’re correct in terms of stringency, vigorousness and *overall* quality. I also take HT meds, was on 150mg Losartan at one point, and like you still here (just).
Major everyday drugs tend to sell at similar prices across the board regardless of brand, but when you consider the cost diff for Cialis and Viagra vs. Generics, then it does beg the question as to how generics can be produced so much cheaper? In fact even the generic PDE5Is can fluctuate widely in cost from day to day.
Spedra (Stendra in the US) is always branded, not aware of a generic Avanafil for this yet, and tends to be expensive, whereas Levitra and generic Vardenafil tend to be similarly priced. But Vigra and Cialis is a different ballgame when it comes to cost vs their generic counterparts. One of the reasons for this is around licensing and the number of manufacturers out their globally.
Clearly the manufacturers are not allowed to play around with the active ingredients themselves so this leaves other factors to reduce cost on... manufacturing process and quality of inactive ingredients and how they’re initially produced i.e. various derivatives and compounds of calcium, magnesium, lactose, colourings, cellulose etc. It's these ingredients which act as “active ingredient carriers” and contribute to how the drug is absorbed.
I've experimented with various generics and branded V and C at 50mg and 100mg, and 10mg and 20mg respectively, and I feel the results have overall been better with the more expensive original brands, but have found one or two generics of Sildenafil which worked well also.
Marm will know more about this than me.