Please come in and help me with my pharmacy problems

Didn't the unit give it wrong? I've calculated each of them, but I can't reach the specified concentration?

The following calculations are all replaced with milligrams to grams).

This calculation is actually not difficult, as long as the balance point between the injected drug and the depleted drug is found - that is, once this balance point is reached, as long as the drug is administered regularly, then the drug concentration can be guaranteed to be the same before and after an injection period.

For example, in the case of the title, the equilibrium point of option 1 is 8mg% (i.e. the drug content is 2g). Start timing at this concentration, after 12 hours (a dosing cycle) the concentration is 4mg% (drug content 1g), at this time the injection of 1g of the drug can restore the concentration to the level 12 hours ago, here the injection drug and the loss of the drug reach equilibrium, so this concentration is the equilibrium point).

According to the half-life formula, b=a*'(i.e. t t.)'The power is then multiplied by a).

where a is the initial concentration, t is the time, t' is the half-life, and b is the concentration of the substance after t time.

Then after the t time, the reduced concentration c=a-b=a*('))

As long as the injection amount of the drug is substituted into c and the dosing cycle is substituted into t, the concentration of the equilibrium point can be calculated.

Based on this substitution of the data of each scheme, it can be calculated that scheme 4 can reach the concentration of the problem (, which will be reduced to .

None of the other schemes could reach the given concentration of the question, so only option 4 was valid.

PS: I wonder if I understand the "reach" of the question correctly? My understanding is that it is enough to exceed, and it does not have to fluctuate up and down at that point).

I would like to give you a few tips from my personal medical experience:

1. Whether pharmaceutical preparations are easy to find a job mainly depends on your academic background and graduate school. If it is all ordinary, it is recommended that you learn English well and switch to the sales industry.

2. The salary is still based on the school you graduated from and your academic qualifications, I don't know your city, there are generally six or seven thousand certificates before Shanghai.

3. I will synthesize all the problems you saved, since you have learned, don't change your major, you can transfer to the sales of pharmaceutical preparations after graduation, so that you still have advantages, I have seen a lot of medical beauty pharmaceutical preparation products, which are imported from abroad, and many of them are professionals transferred over, but their English is particularly good, so that their professional quality is excellent and their English is good, and tens of thousands of dollars a month are no problem.

In the end, whether you can make a sale, whether you do it well or badly is up to you.

Question 1 Option c Nifedipine is an L-type calcium channel (vascular smooth muscle) blocker that lowers blood pressure by dilating blood vessels, while inducing reflex increase in cardiac output and ankle edema.

The second question is Nicosamil, which can stimulate the respiratory center and improve the respiratory depression caused by phenobarbital.

There are four main majors in pharmacy: pharmacy, pharmaceutical preparations, traditional Chinese medicine, and pharmaceutical engineering. The core courses of its specialization are:

Organic Chemistry, University Chemistry Laboratory, Biochemistry and Molecular Biology, Medicinal Chemistry, Pharmaceutics, Pharmacology, Pharmaceutical Analysis, Pharmaceutical Administration, Biopharmaceutics and Pharmacokinetics.

Clause. 1. The doctor gave me the drug without any words, only told me how to use it, I think he wanted to keep it secret, and I don't know if he applied for a patent.

First of all, these drugs are illegal. If it is an illegal "three no" drug, you can complain to the local drug regulatory department.

Secondly, the quality and efficacy of such drugs are not guaranteed. Drugs that have not been identified by the toxicology of the relevant national departments are not yet determined, and I hope that you as a patient will not buy and take them.

Clause. Second, if I use it for testing and then prepare it myself**, will it be illegal?

First, you can do a test.

Secondly, if the first-class drug meets the standards of the State Food and Drug Administration, it is naturally legal, but if your drug production is still a "three-no" drug that has not been reviewed and approved for the record, it is illegal.

Good luck!

Resistoxa is the trade name, the scientific name is cephalexin trimethoprim capsules, which belongs to the cephalosporin class (formerly known as the pioneer mycin) antibiotic.

Penicillin-resistant staphylococcus, streptococcus, pneumococcus, E. coli, etc., --- Staphylococcus, Streptococcus, Pneumococcus, Escherichia coli and other pathogenic bacteria can infect people, and some can use penicillin**, but if penicillin-resistant strains are infected or tolerance develops during the penicillin** process, penicillin cannot be continued and replaced with other effective antibiotics. Apparently the instructions say that Resistance Shu can ** this type of penicillin-resistant. Infection with drug-resistant strains.

Those are all curative bacteria, and Resistoxen is a cephalexin compound antibiotic, and penicillin-resistant bacteria can still be effective when they use this drug.

Use traditional Chinese medicine, don't use antibiotics at every turn, it's not good for your health.