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Norpseudoephedrin otherwise known as d-norpseudoephedrine HCl and marketed under many brand names that are too numerous to list here is a drug that's mostly used as an anorectic agent (that is, a diet pill). More to the point, this sympathomimetic compound's mechanism of action involves mass reduction through its appetite-suppressing properties, which also helps make the lower kilojoule intake diet tolerable. Like other phenylalkylamines, it has central activity.

Because it's a diet pill, the anorectic medicine is best used for eliminating the excess mass of overweight or obese people via its "positive energy balance" approach. In simpler terms, it helps plus-sized men and women lose weight by suppressing their appetite. Norpseudoephedrine vendors don't claim the pill to be a standalone weight loss product, but instead markets it as a weight loss aid.

It usually comes in capsule form and can be ordered online. It's mostly recommended for short-lived, temporary treatment because it only assists in the mass reduction process. To be more specific, it's best used with a well-balanced reduced kilojoule diet in order to make long-term weight control possible.

A capsule once daily after breakfast with a little water and no chewing is enough for the medication to work its appetite-suppressing abilities to the utmost. Because many people obtain the main part of their food intake during lunch and dinner, it's best to take norpseudoephedrine before those two critical periods of nourishment.

It's also important for the patient to supplement a reliable exercise and diet regimen while undergoing treatment in order to fully enjoy the medication's weight reduction effects. In addition, it's advisable to stop treatment altogether after four weeks (that is, about a whole month) because it should not be used beyond that time.

It's been reported that large doses or extended intake of the drug can lead to symptoms like insomnia, restlessness, anxiety, muscular weakness and tremors, difficulty in micturition, palpitation, precordial pain, tachycardia, thirst, dryness of the mouth, sweating, vomiting, nausea, headache, and giddiness.

There are also patients who exhibit the above symptoms even when taking the recommended daily dose. What's more, this drug is known to cause excitability, agitation, and psychotic reactions as well. Patients with a history of mental disease should take this medication with doctor or pharmacist approval and due caution.

Lengthy use of the drug has been reported to induce tolerance with dependence, but aside from that, it causes no cumulative effect. Be careful when administering it to people who are under the influence of halothane, cyclopropane, chloroform, or other halogenated anesthetics. It could also hamper the effectiveness of guanethidine and may increase your risk for arrhythmias if you're a digitalized patient. People with organic heart disease, decompensation, or angina of effort in those undergoing digitalis should take this medicine with due caution.

The overall potency of the drug may be reduced or amplified by tricyclic antidepressants, and it can also cause increased difficulty with micturition for sufferers of prostatic enlargement. In terms of when to best take norpseudoephedrine, you should only limit administration after breakfast, because taking it during the afternoon can cause a stimulant effect on your central nervous system.

This kind of drug can be abused as well, so that's one more reason why treatment should only in be limited to a short period of time. Additionally, alcoholics should avoid taking this drug too. For any other questions in regards to drug interactions and precautions, feel free to consult your designated healthcare specialist or pharmacist for more details.

• Molecular formula of norpseudoephedrin is C9H13NO
• Chemical IUPAC Name is (1S,2S)-2-amino-1-phenylpropan-1-ol
• Molecular weight is 151.2056 g/mol

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