Limestone is by definition a rock that contains at least 50% calcium carbonate in the form of calcite by weight. All limestones contain at least a few percent other materials. These can be small particles of quartz, feldspar, clay minerals, pyrite, siderite and other minerals.
Answers (4) You have not mentioned the name of the medicine in your post. Ideally 4 times a day means every 6 hours. It depends on what the medicine is as to how rigid you should be in regards to dosing. If the medicine is an antibiotic then every 6 hour dosing is important as is pain relief medication if in severe pain. If the dosing isn't so critical then 4 times a day could be evenly spaced out during the waking hours.
During the Cycle: 1 pill missed: Take it as soon as you remember and take your next pill at your usual time. This may mean taking two pills in one day. 2 pills missed in a row in the first two weeks: Take two pills on the day you remember and two pills the next day. day late starting the next package: Take two pills as soon as you remember and one pill each day after. Use a backup form of birth control for two weeks. 2 days late starting the next package: Take two pills per day for two days, then continue as usual.