
Modified Gas (Cannabis flos Cantourage): lineage from Compound Genetics and a single source
Modified Gas is a hybrid from First Class Funk and Grape Gasoline, which is currently supplied by one producer in Polish pharmacies. We check what the only available study says about its terpene composition and where the evidence ends.
| Strain card | Modified Gas |
|---|---|
| Producers | Cantourage (1 pharmacy position) |
| Medical brand | the same as the producer |
| Alternative names | none |
| Category by sources | hybrid |
| Leading terpene | limonene |
| Other terpenes | farnesene caryophyllene linalool myrcene |
| Lineage | established First Class Funk × Grape Gasoline |
| Source compliance | single source |
- Who supplies it. Exclusively Cantourage, so there is nothing to compare versions, and a supply break means no availability of this strain, not another version of it.
- Profile. Limonene leads, alongside farnesene, caryophyllene, linalool, and myrcene. We do not provide percentage shares because sources count them against different totals.
- Origin. Established lineage, parents are First Class Funk and Grape Gasoline.
- What is missing. The profile describes a single source, so there is nothing to compare it with.
Where does Modified Gas come from and who cultivated it?
Modified Gas is a hybrid developed by Compound Genetics from the cross of First Class Funk and Grape Gasoline. The lineage comes from a description that was confirmed directly at the source, not from a repeated mention. Both genetics available for this position call it a hybrid, without assigning it to either indica or sativa strains.
The trail on the parents ends there. Neither First Class Funk nor Grape Gasoline has an established origin with us, so the tree of this strain ends one generation back. This is not a gap to be filled with speculation: the breeder is not obliged to disclose lineage, and descriptions circulating on forums can contradict each other. Adding grandparents by intuition would create false connections with strains that actually have nothing to do with this one.
Separately, lineage must be distinguished from the trade name. In the same set stands another position with the term “Gas” in the name, Farm Gas, which comes from a completely different pair of parents, after Sour Diesel and GMO. A common word in the name does not indicate any kinship in either direction. Strain names are created in breeding marketing, not in a lineage registry, and are sometimes assigned for the sake of scent association.
Which producers supply Modified Gas to Polish pharmacies?
One. In our list of pharmacy positions, Modified Gas appears exclusively under the Cantourage brand and only in one variant, so there is nothing to compare between producers. The registered name is Cannabis flos Cantourage; we consciously omit the numerical part that usually stands in such a name.
| Producer | Registered name without numerical part | Genetics according to description | Variants in our data | Source of profile description |
|---|---|---|---|---|
| Cantourage | Cannabis flos Cantourage | hybrid | one | one industry database |
The reason for omitting the number is prosaic. The value declared by the producer has a deviation of about one-tenth of itself, and the description of this position does not provide any ranges, only one result. Transcribing it into the article would pretend to be a measurement made on the package that the patient holds in hand, and such a measurement has not been made. The content of the active substance remains on the leaflet and in the series documentation, and here we describe what the number does not convey. The producer will receive a separate description along with the rest of its assortment.
The wholesaler’s offer does not stand still. The permit for the admission of raw material expires after five years and can be revoked earlier, deliveries come in batches, and the pharmacy orders what is currently available from the distributor. A position that has one producer today may have two in six months or disappear from the list for several months. The current state is maintained in one place, in the list of strains available in Polish pharmacies, and that is where changes are recorded, not in this description.
What does Modified Gas smell and taste like?
- farnesene farnesene
- caryophyllene caryophyllene
- limonene limonene (leading in the pharmacy list)
- linalool linalool
- myrcene myrcene
The descriptions of the smell of this position revolve around a sweet-fruity note with a distinct spicy and peppery background. There is also earthiness and a lavender accent, which is usually associated with the presence of linalool. All these descriptions come from one study and are sensory descriptions, not results from laboratory measurements.
The names of the terpenes explain some of these sensations, though not all. Peppery sharpness usually goes hand in hand with caryophyllene, floral softness with linalool, and citrus freshness with limonene, which this study places first in this profile. Myrcene is often described as an earthy note. Farnesene, the fifth compound mentioned, has no established scent description at all, as the literature on it pertains to insects, not human olfaction.
One thing in this description stands out due to its absence. Despite the name suggesting a fuel sharpness, the list of aromas for this position does not mention either gasoline or diesel. The terms come from a closed industry taxonomy, in which such a position is simply not anticipated, so its absence does not prove that no one detects that note.
However, the smell is not a promise of effect. The same terpene name returns in descriptions of strains perceived completely differently, and the intensity of aroma depends on harvesting and drying more than on genetics. Dried material kept in heat and light loses volatile compounds the fastest, so two packages from the same batch may smell different after a few weeks of sitting in a drawer.
How long does it take for Modified Gas to take effect and how long does the effect last?
For Modified Gas itself, there is no answer from measurement. No one has published a study on the duration of action for this cultivar, so the ranges that can be honestly provided describe the route of administration, not this specific strain. The following numbers pertain to cannabis flower taken by inhalation or orally.
The route of administration determines the course more than the strain itself, and the ranges below describe it, not this cultivar, as pharmacokinetic studies for a single cultivar have not been published.
| Vaporization | After swallowing | |
|---|---|---|
| First sensations | after a few minutes | from half an hour to two |
| Onset | another ten to thirty minutes | slowly, over several hours |
| Total duration | within two to four hours | after six, sometimes eight hours |
| Typical error | none | taking a dose after thirty minutes, which gives both doses at once |
In the studies describing this position, there is not a single sentence about the duration of action over time; they talk about composition and genetics, and pharmacokinetics are not touched at all. In fact, it is not the name on the package that determines this, but the method of administration established by the attending physician, as the range between inhalation and oral administration is greater than any difference between individual strains of flower.
What is known about the effects of Modified Gas, and what remains unverified?
Nothing is known about the effects of Modified Gas from clinical studies, as none have been conducted for it. What can be described pertains to individual terpenes in its profile and comes from studies on rodents. The rest of the descriptions circulating online are sales material or user reports.
The profile composition describes a single source, one industry database, and lists farnesene, caryophyllene, limonene, linalool, and myrcene; limonene is considered the leading one. We do not transcribe the shares of these compounds because it is unknown what they are counted against: five values given in the same set sum to one hundred eighteen, not one hundred. A number without a denominator looks like a measurement, but it is not.
For limonene, the evidence base for this project has two studies, both on rodents. Limonene administered intraperitoneally in mice showed muscle relaxant effects (rota-rod test) from a dose of 50 mg/kg and prolonged sleep induced by pentobarbital at a dose of 200 mg/kg (about 2.6 times); in the elevated plus maze test, already at a dose of 5 mg/kg, it reduced the number of entries into the open arms, which the authors described as an anxiogenic effect, not anxiolytic. This is how do Vale et al. described it.
| Study | Model and route of administration | What was shown |
|---|---|---|
| do Vale TG et al., 2002 Phytomedicine PMID:12587690 |
rodent (mouse, intraperitoneal administration) | Limonene administered intraperitoneally in mice showed muscle relaxant effects (rota-rod test) from a dose of 50 mg/kg and prolonged sleep induced by pentobarbital at a dose of 200 mg/kg (about 2.6 times); in the elevated plus maze test, already at a dose of 5 mg/kg, it reduced the number of entries into the open arms, which the authors described as an anxiogenic effect, not anxiolytic. |
| Fakhri S et al., 2025 Behavioural Pharmacology PMID:40622197 |
rodent (rat and mouse) | Limonene reduced paw swelling induced by carrageenan in rats and pain responses in the formalin test in mice; the effect was linked to the l-arginine/nitric oxide/cGMP/KATP channel pathway and involvement of opioid and benzodiazepine receptors. |
The boundary of this data must be stated plainly. No anxiolytic effect of limonene has been demonstrated in humans. It has also not been shown that isolated limonene has anxiolytic effects in animals; the only available data from the elevated plus maze test showed in mice the opposite effect, reducing the number of entries into the open arms even at a low dose. Neither of the two studies examined flower or even a mixture of terpenes, only a single compound administered intraperitoneally, in doses not translatable to inhalation from a vaporizer.
What side effects have been reported after Modified Gas?
None attributed to this name. The Polish reporting system links the description of an adverse effect to a specific medicinal product and batch number, not to the strain name, so there is no separate statistic for Modified Gas, and under the current reporting method, there cannot be. What remains is what has been documented for the entire group of raw material.
Reports of adverse effects are collected for the medicinal product with a batch number, not for the strain name, so the following pertains to cannabis flower as a group of raw materials. The most commonly reported are dry mouth, red eyes, and increased heart rate. Less frequently described are dizziness upon rapid standing, daytime drowsiness, and temporary worsening of short-term memory, as well as anxiety increasing with dosage. A separate issue is medications taken concurrently, especially sedatives and those affecting coagulation: their assessment requires knowledge of the entire list of preparations, not just the description of the plant. We do not provide the frequency of these symptoms numerically, as public compilations for cannabis flower in Poland do not separate them by individual products.
For this position, there is one more caveat. In our data, it has one pharmacy variant from one producer, so the group of patients who could report anything is necessarily small. The silence around the name does not therefore prove the mildness of the strain, but results from a small sample and the way records are kept.
What does the boiling temperature of terpenes say about the vaporization of this strain?
Less than the tables circulating on forums promise. The temperature set on the vaporizer is not the temperature of the flower, as the material cools due to the airflow during inhalation, and the evaporation of the compound begins long before its boiling point. Aiming for a single number to extract a chosen terpene is therefore based on a misunderstanding.
The boiling points for this profile look in the public chemical compound database as follows: myrcene boils at about 167 degrees Celsius, limonene at about 178, linalool at about 195, and caryophyllene only at about 257. For farnesene, the database does not provide a boiling point at all, so the fifth compound from this profile cannot be placed in the same series. This alone shows how valuable the tables comparing all terpenes side by side are. The above values were measured at pressures close to atmospheric, and databases provide for some compounds only measurements under reduced pressure; placed in one series alongside the previous ones are not rounding, but misrepresentation.
From the above, no recommended range follows, and we intentionally do not provide it. The method of administration, along with the temperature, is determined by the attending physician together with the patient, and the raw material is dispensed from a physician’s prescription. Separately, we explain why the vaporizer setting is not the temperature of the flower, and separately we gather the state of knowledge about limonene itself.
Which strains from Polish pharmacies are related to Modified Gas?
| Strain | Common parent | Leading terpene | Producers |
|---|---|---|---|
| Gastro Pop | Grape Gasoline | myrcene | Four 20 Pharma |
| Pink Certz | Grape Gasoline | nerolidol | S-LAB |
Two: Gastro Pop and Pink Certz. Both have the same parent as Modified Gas, namely Grape Gasoline, and both come from the same breeding. The second parent is different in each of the three cases, so we are talking about half-siblings, not variants of one line.
The differences begin precisely with this second parent. Gastro Pop was created from the cross of Apples and Bananas with Grape Gasoline, while Pink Certz combines The Menthol with the same parent; they reach pharmacies under three different brands. The common ancestor does not translate into a common profile: the leading compound in the descriptions of these three positions is considered to be myrcene, nerolidol, and limonene, respectively.
The list ends with two names, and this is a result, not a lack of data. We count siblings only where the common parent is an identified strain, not a broad family like Afghan or haze. Positions sharing only such a category are not related in any useful sense, so we do not add them here. Also left out are strains that are not currently available in Polish pharmacies. Kinship does not suggest anything to the patient, after all: it speaks of breeding work, not of how two related positions will act on the same person.
Frequently asked questions about Modified Gas
Is Modified Gas an indica or sativa strain?
The studies available for this position call it a hybrid and do not assign it to either of the two traditional groups. The division into indica and sativa strains today is based more on trade tradition than on established lineage, so it says little about what the patient can expect.
Who cultivated Modified Gas?
The strain was developed by Compound Genetics, and the parents are First Class Funk and Grape Gasoline. We do not have confirmed origins of the parents themselves, so the tree of this strain ends one generation back.
How many producers supply Modified Gas to Polish pharmacies?
In our data, one, Cantourage, and in one variant. However, the composition of the wholesaler’s offer changes from month to month, so the number of producers given in the strain description ages faster than the rest of this text.
Does limonene from this strain have anxiolytic effects?
This has not been demonstrated. Studies on rodents showed in the anxiety test the opposite effect to what was expected, and no equivalent studies have been conducted in humans. Descriptions attributing calming effects to the strain come from sales materials or user reports.
Can Modified Gas be purchased without a prescription?
No. It is a pharmaceutical raw material in the Rpw category, dispensed only by a physician’s prescription. The strain description is not an indication for its use or an encouragement to reach for it.
Why do you not provide the active substance content for this strain?
Because the study describing this position provides one number without ranges, and the value declared by the producer has a deviation of about one-tenth of itself. A bare number would pretend to be a measurement made on a specific package, which no one has conducted.
The material is for informational purposes and does not replace medical advice. Cannabis flower is a pharmaceutical raw material dispensed by a physician’s prescription in the Rpw category and is not the same as flower available for retail sale. The editorial text was prepared by the editorial team of ubucha.pl.







