Our expert says:
Never leave me ? Well, at least I dotn't feel deserted and bereft ! :}
The effect your doc is talking about isn't related to any drug itself, but to the preparation of it. Any SR or XR or other Sustained-Release or Slow-release preparation, is carefully formulated so that the drug is released and absorbed more slowly and gradually over a longer period of time --- so one takes one such tablet a day and gets a similar effect to taking an ordinary tablet or capsule several times a day. ( Forumlation is also the difference between a solif aspirin tablet, and a fizzy one designed to fizz and dissolve so it gets aborbed quicker --- both might contain the same amount of aspirin, but they'd vary in how they'd affect you ).
Different products differ in how they try to achieve this. Some by mixing the active drug with other cther substances to slopw absorption ; some rely on special coating on the outside of the tablet, or different layers interspersed with special coatings, to delay and regulate how it dissolves and releases the meds. The last sort, especially, is disturbed if you break the tablet, as this then exposes all layers to immediate dissolving and absorption, and may destroy the slow release effect.
IN such a case, if one would indeed be best suited to a mid-way dose, such as you suggest, one checks whether the manufacturer produces a slow-release version at that intermediate dose, and if now, then one either accepts the effects at the higher dose ( if the lower dose's effects were insufficient ) or one reverts to the ordinary versions of the drug which are now slow-release, and where, for instance, there may be plain 10 mg tablets or capsules one would take 3 times a day.
Sorry to hear about your housekeeper --- such suddent and unexpected deaths ofrten trouble us and may make us focus uncomfortably on one's own health. If your heart function has been checked out properly ( and i seem to remember it was ) then you should be able to assume that these occasional irregular beats will not cause problems. In this muggy weather, be sure to drink enough water --- one of the effects of dehydrating is that it may increase the effective concentration of some of the drugs we take.
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