The term dosage refers to the size of a dose of a medicine or drug. In regards to the classification of dosage and their amounts, it can be broken down into microdose, threshold, light, common, strong, heavy, and overdose (fatal and non-fatal). Each of these levels result in a different intensification of the compound's desired effects depending on the substance consumed.
Within the context of psychonautic or recreational substance usage, it is important to understand dosages and to pay utmost caution to the amount being consumed. Administering the wrong dosage of a drug can lead to negative experiences such as extreme anxiety, uncomfortable physical side effects, a bad psychedelic trip, hospitalization, or (in extreme cases) death. Taking too low of a dose can often make people feel uncomfortable and frustrated, which can be dangerous when it leads them to re-dose at higher than the original intended amount, which can result in suddenly intense, overwhelming and potentially dangerous experiences.
It is important that one avoid dosages which one is uncomfortable or unfamiliar with. An inexperienced user should always start at very low dosages with the goal of working their way up in small increments as they feel comfortable doing so. This should be done by slightly increasing the dosage with each separate experience and never taking great leaps into the unknown.
Doing so allows people to get a feel for the substance that they are using in a controlled setting before they dive into deeper states. For pressed pills or tabs, one should buy from a reliable source with consistent product and ask questions concerning purity and how many milligrams of a drug is in the product.
This minimizes the risk of an accidental negative experience enormously; it is important to remember that everybody reacts differently to every substance depending on factors such as their own personal tolerance, neurophysiology, body weight, metabolism, stomach contents and personal sensitivity. Another factor to consider is drug purity which differs between batches of product.
Some people, especially those with health issues or over-reactive immune systems, may have adverse or allergic reactions to drugs such as uncomfortable physical or cognitive effects, or over-sensitivity. The best way to prevent this is to perform an allergy test with every new batch of a substance the user receives (even if coming from a reliable source, as sometimes much more potent and dangerous compounds can become unintentionally mixed up with the product being advertised). To properly perform an allergy test, one can simply dose a minuscule amount of the drug (1/6 of a regular dose) and then wait several hours to a few days.
When performing an allergy test, one should note any unusual side effects including rashes, hives, breathing discomfort, an uncomfortably fast heartbeat, or a burning sensation on one's skin. Depending on the severity of symptoms, medical services may be needed.
There are various ways in which users measure their dosages of psychoactive substances. The most accurate and safe method to measure one's drugs is to use a combination of a milligram scale and the volumetric liquid dosing method. This is a vastly far safer route than "eyeballing" one's dosages by approximating the weight of what they are ingesting simply by looking at it and making a rough (but inaccurate) guess.
Eyeballing is strongly discouraged in any context. Eyeballing is a highly inaccurate method of measuring substances which involves looking at a substance and making a rough guess of the weight. Since there is not much difference between 10mg and 30mg visually, it can result in one taking too much of a substance. There are numerous forms of eyeballing methods, including using micro scoops and the graph paper method.
- Measuring scoops
- Graph paper method - In this method, a known quantity of a substance is spread evenly onto a piece of graph paper and one's doses are based on how many graph paper squares are covered. This method is inaccurate simply because the volume of a measured weight of powder can vary significantly in its density, even with different batches of the same substance. For example, two equal-sized piles of mescaline can have completely different densities and therefore different weights.
Users should not trust a vendor's word that their product weighs a certain amount as it is not unheard of for vendors to accidentally or intentionally give out the wrong amount of a product (both more than advertised or less), which can result in overdoses for some users.
It is especially dangerous to eyeball substances that are active at extremely low doses (under 10mg) and have sensitive dose-response curves.
When buying chemicals in powdered form, it is strongly recommended that one invest in a reliable and accurate digital milligram scale to ensure that they are ingesting a safe and recommended dosage. A simple $20-30 investment in such equipment can be the difference between a safe and enjoyable experience, and a negative and dangerous one.
To achieve the most accurate measurement, the scale should only be used on a completely flat surface away from vibrations, wind, and drafts. Low batteries can also affect the scale's accuracy, so one should occasionally replace them.
There are a huge variety of different scales available online through various sites. To choose a quality scale, users should read the reviews before buying and come to their own personal decision. Users should ideally choose a scale that has a 0.001 g readability. When using a scale that has 0.005 gram (5 mg) accuracy, the weight will be off by 5 mg in either direction, meaning that if one measures 20mg of a substance, the results will be between 15-25 mg.
- Readability: The smallest difference between two measured values that can be read on the display.
- Repeatability: The ability of a balance to provide the same result for repeated weighing of the same load under the same measurement conditions.
- Linearity: The capability of the balance to follow the linear relation between the load and the displayed value.
- Cornerload: Inaccuracy of the balance factor for objects that are not placed centrally on the balance.
- Accuracy: Closeness of the agreement between the determined result and the true value.
- Precision: Extent of mutual agreement between of several measured values, independent of the true value.
For general purpose usage, the following products can be used. Some of these scales below are recommended by TripSit. The scales are sorted by maximum quantity because a 0.001 x 20 g scale will provide better accuracy than a 0.001 x 100 g scale.
- Milligram scales
- Centigram scales
- GemPro 250 (US): 250 g x 0.01 g
Milligram scales under $1000 cannot accurately weigh out doses below at least 50mg and are highly inaccurate under 10-15mg. For potent drugs, users are strongly advised to use volumetric liquid dosing.
Most milligram scales are more accurate in higher ranges (5 - 15 grams) than the lower ranges. Therefore, it is better to weigh one's drug while the included calibration weight is on the scale. The following steps outline the weighing method for the most accurate measurement:
- Place scale on completely flat surface away from wind and vibrations
- Calibrate scale
- Add the calibration weight that comes with the scale onto scale without tarring
- Add empty gel capsule and mark down weight without tarring
- Add the powder into the gel capsule
- Mark down weight of filled capsule
- Subtract the weight in step 4 from the final weight in step 6
- Use volumetric liquid dosing afterwards, especially for very potent drugs (under 10mg)
Volumetric liquid dosing
|Main article: Volumetric liquid dosing|
Volumetric liquid dosing is the process of dissolving a known quantity of a compound in a liquid medium in order to make it easier to measure and accurately dose. In the interest of harm reduction, it is essential to prepare certain compounds which are too potent to measure with traditional weighing scales within a liquid solution. Please see the above article for more information about this form of measurement.
The range and intensity of the effects of a substance depends on upon a number of factors. These include route of administration, dosage, set and setting, and personal and environmental factors. Effective doses can be divided into five categories: threshold, light, common, strong, and heavy.
- Erowid Psychoactive Vaults: Dose | https://www.erowid.org/psychoactives/dose/dose.shtml
- How big is a milligram? (Ask Erowid) | https://www.erowid.org/ask/ask.php?ID=2282
- The Importance of Measured Doses by Fire Erowid & Spoon | https://www.erowid.org/psychoactives/basics/basics_measuring1.shtml
- American Weigh Scales, Inc Gemini-20 User Manual | http://www.americanweigh.com/pdf/manuals/gemini-20_manual.pdf
- Tripsit Wiki - Scales | https://wiki.tripsit.me/wiki/Scales
- 3-MeO-PCP (Tripsit) | https://wiki.tripsit.me/wiki/3-MeO-PCP