Supplements
Prescriptions come in many different forms: pills, liquids, powders, patches. I'm adding a link to a drug-identification website. This is helpful if you have a pill and don't know what it is.
Some pills contain only progestin
Supplements are available in a variety of different forms including pills, capsules, powders, and liquids. Vitamin C formulas also vary. Common compounds include ascorbic acid, calcium ascorbate, sodium ascorbate, and C complex.
Forensic drug testing is to identify unknown powders, liquids and pills that may be illicit drugs. There are basically two categories of forensic tests used to analyze drugs and other unknown substances. They are Presumptive tests and Confirmatory tests.
To answer your question about MRI black powder pills, they do not contain any creatine.
The levonorgestrel pills do not contain penicillin.
The last seven pills in the birth control pack are to keep you in the habit of taking pills. Some contain vitamins, but most contain no active ingredients.
I am not a doctor, so you should verify with one before making a decision, but to my knowledge you should take all of the pills in the pack. I also learned recently that the last pills in the pack are not just sugar pills anymore. Many of these pills contain important vitamins and nutrients that your body needs during your menstrual cycle.
All birth control pills contain an artificial progesterone. Most, but not all, also contain an artificial estrogen.
Some pills contain only progestin
Because they are not synthetically created from powders that can kill in large quantity. Fruits on the other hand..
Active pills refer to birth control pills that contain hormones and are taken daily to prevent pregnancy. Non-active pills, also known as placebo pills, do not contain hormones and are taken at the end of the active pill cycle to help maintain the daily habit of taking a pill.