The three main categories of medicines are prescription drugs, over-the-counter drugs, and complementary and alternative medicines. Prescription drugs are medications that require a doctor's prescription, while over-the-counter drugs can be purchased without a prescription. Complementary and alternative medicines include practices such as herbal supplements and acupuncture.
If by categories you mean phases, then there are 3 commonly recognized phases with a possible fourth as well. The three states are: Solids Liquids Gasses The fourth (which is found under EXTREMELY high pressures and EXTREMELY high temperatures) is: Plasma
Metals, non-metals and transition metals.
The three categories of fat are saturated fats, unsaturated fats (which include monounsaturated and polyunsaturated fats), and trans fats. Saturated fats are primarily found in animal products, while unsaturated fats are found in plant-based oils and fatty fish. Trans fats are typically found in processed and fried foods.
The three major categories in the Periodic Table are metals, nonmetals, and metalloids. Metals are typically shiny, malleable, and good conductors of heat and electricity. Nonmetals are often dull in appearance and poor conductors of heat and electricity. Metalloids have properties that are intermediate between metals and nonmetals.
The three categories of chemical reactions are synthesis (combination), decomposition, and replacement (single or double displacement) reactions. Synthesis reactions involve the combination of two or more substances to form a new compound. Decomposition reactions involve the breakdown of a compound into simpler substances. Replacement reactions involve the exchange of ions between compounds.
The medicines act 1968
The Medicines Act 1968 governs the control of medicines for human and veterinary uses. It defines three categories of medicine, being prescription only medicine, pharmacy medicines and general sales list.
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prescription and over-the-counter
three categories of pipkins
Awareness, educational, avoidance
The three board categories of natural vegetation are Forests, Shrub lands and Grasslands.
The three main categories of fashion are haute couture,ready-to-wear and mass market.
Mars fits into all three categories of being an inner planet, a terrestrial planet, and a small planet in our solar system.
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The three categories that make up freedom are political rights, civil rights, and economic freedom.