None. No such salt block, medicated block nor loose mineral mix exists.
Zero. There are no salt blocks available on the market that have ephedrine in them.
There really is no such salt block or mineral mix. You can check with your veterinarian or those companies that make livestock salt blocks but it's highly likely you will not find such an ingredient in salt licks for cattle.
There isn't. This is a myth that has been passed on by drug addicts that have been trying various methods to get the various ingredients needed to produce methamphetamine, or crystal meth.
No. This has been proven by various scientists that this is a myth. Please see the related question and links below for more info.
Nowhere because no such salt or mineral block exists.
There are no salt or mineral nor medicated mineral blocks that contain any form of ephedrine in them. Sick animals are treated by antibiotics via injection, not by just giving them a "medicated" salt block.
They are not and never have been. Ephedrine is not found in medicated salt blocks.
Zero. There are no salt blocks available on the market that have ephedrine in them.
There really is no such salt block or mineral mix. You can check with your veterinarian or those companies that make livestock salt blocks but it's highly likely you will not find such an ingredient in salt licks for cattle.
No because such salt blocks do not exist.
You cannot extract ephedrine or pseudoephedrine from a mineral block. Anyone who tells you that they have done it is either mistaken or a liar. The claim that ephedrine can be extracted from a livestock mineral block has been proven as false and erroneous by Drug Enforcement Administration (DEA) scientists upon attempting to extract ephedrine from mineral blocks through various methods that have been "tried and tested" by various people. The only reason that these people would be wanting to attempt to extract such substance from mineral blocks would only be for the purpose of making an illegal narcotic drug called Crystal Meth. Apart from the evidence gathered by the DEA, scientists from an anonymous major feed-producing company have also "concluded that [mineral salt blocks or licks] contain no ephedrine or pseudoephedrine." However, the DEA article below does mention that salt (NOT ephedrine nor "psuedoephedrine") from such mineral blocks can be extracted for the production of Crystal Meth.(Note that producing such a highly illegal substance can and will land you in jail. If you aren't in jail yet for taking or making such narcotics, it's only a matter of time before you are.)Please see the related links below. (You will need to scroll down the linked page until you reach "EPHEDRINE FROM LIVESTOCK MINERAL BLOCKS SCAM ENCOUNTERED IN BARRY COUNTY, MISSOURI").
No. No mineral blocks of any type have ephedrine in them. This is just a myth spread around by crystal-meth drug addicts that are always trying to find new ways to get certain ingredients to make this illegal narcotic.
Nowhere. These type of blocks do not exist.
None. No salt licks, mineral blocks, medicated feed or any of that sort have ephedrine in them. This is a myth that has been tested and busted by various scientists that have tried to extract ephedrine from various animal-feed and chicken litter sources. Please see the related question below for more info.
Blue blocks contain NaCl (table salt), Cobalt and Iodine. Red blocks contain Salt, Iron and Iodine. Brown blocks contain Salt, Cobalt, Iodine, Iron, Zinc, Copper, Manganese, Molybdenum, Potassium and Magnesium (guessing on the last two minerals) Black blocks contain everything that the brown blocks do, plus Selenium.
No such ingredient is found in salt blocks for cattle. It is merely a myth or rumor that has been passed along from one drug addict to another in their attempt to gain different ingredients to make methamphetamine.
Yes, like all ungulates caribou love their salt. Much of what they eat is deprived of sodium, thus they develop a craving for salt (such as table salt, which contains sodium, and from which most livestock salt-blocks and salt-mineral mixtures contain) which can only be satisfied if they find a salt deposit were they can satiate their cravings.