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The concentration of such particulate matter and chemical residual will highest immediately after cleaning, and will decrease over time depending upon levels of contaminants, air exchange rate, and other sources of chemical residual. [5] Of most concern are the family of chemicals called VOCs such as formaldehyde, toluene, and limonene. [7]
Examples of substance based medical devices include products for gastrointestinal relief like medicinal clay or simeticone-based products, as well as unmedicated nasal sprays, certain eye drops, dermal formulations, oral cough treatments, and other products for self-medication that often are available without a prescription. [1]
A disinfectant is a chemical substance or compound used to inactivate or destroy microorganisms on inert surfaces. [1] Disinfection does not necessarily kill all microorganisms, especially resistant bacterial spores; it is less effective than sterilization, which is an extreme physical or chemical process that kills all types of life. [1]
Traditionally, biocides, a chemical substance or microorganism that can control the growth of harmful organisms by chemical or biological means, are used to prevent marine biofouling. Biocides can be either synthetic, such as tributyltin (TBT), or natural, which are derived from bacteria or plants. [ 46 ]
Inhaler or puffer, a medical device used for delivering medication into the body via the lungs (often used in the treatment of asthma) Khaliq v HM Advocate , a Scottish criminal case in which the court ruled that it is an offense to supply materials that were used for sniffing
Examples of OTC substances approved in the United States are sunscreens, anti-microbial and anti-fungal products, external and internal analgesics such as lidocaine and aspirin, psoriasis and eczema topical treatments, anti-dandruff shampoos containing coal tar, and other topical products with a therapeutic effect.
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As different drugs have different effects, they may be used for different reasons. According to the self-medication hypothesis (SMH), the individuals' choice of a particular drug is not accidental or coincidental, but instead, a result of the individuals' psychological condition, as the drug of choice provides relief to the user specific to his or her condition.