
Gastro Pop (Cannabis flos Four 20 Pharma): lineage after Grape Gasoline and myrcene profile
Gastro Pop reaches Polish pharmacies from a single producer. We compare the lineage from two genetic catalogs, the disputed terpene profile composition, and what studies on myrcene have not shown.
| Strain card | Gastro Pop |
|---|---|
| Producers | Four 20 Pharma (1 pharmacy position) |
| Medical brand | the same as the producer |
| Alternative names | none |
| Category according to sources | hybrid / indica-dominant hybrid (sources inconsistent) |
| Leading terpene | myrcene |
| Other terpenes | caryophyllene linalool ocimene |
| Lineage | established Apples And Bananas × Grape Gasoline |
| Source consistency | divergent (2 sources) |
- Who supplies. Only Four 20 Pharma, so there is nothing to compare versions with, and a supply break means no availability of this strain, not another version of it.
- Profile. Myrcene leads, followed by caryophyllene, linalool, ocimene. We do not provide percentage shares because sources count them against different totals.
- Origin. Established lineage, parents are Apples And Bananas and Grape Gasoline.
- What is missing. Two sources describe the profile differently, so the rest of the set is disputed, not established.
What is Gastro Pop and where does this strain come from?
Gastro Pop is a hybrid bred by Compound Genetics from a cross of Apples and Bananas with Grape Gasoline. It reaches Polish pharmacies as the flower of a single producer. The lineage is confirmed by two independent genetic catalogs, while the plant type designation is recorded inconsistently in Polish databases. The trade name is not an abbreviation of any indication.
The second parent is sometimes recorded in two ways. Leafly lists this cross as a combination of Apples and Bananas with Grape Gas, while the breeder’s card on SeedFinder describes the same line under the full name Grape Gasoline. In the lineage graph of this cluster, we have consolidated both forms into one position, as recording them separately breaks one parental strain into two and disrupts the connection with cultivars that have siblings from it.
The plant type designation is not consistent in the sources. One Polish database describes Gastro Pop as a hybrid with indica dominance, while the other simply as a hybrid. Such a label may be a catalog convention rather than a measurement result, so it cannot be derived from it either the size of the dose or the course of action. We treat it as information about what the source wrote, not about the plant itself.
The presence of this strain in circulation can be intermittent. Whether it can be purchased in a given week depends on the release of the next batch by the producer and the stock in the wholesaler, not the mere presence of the strain in genetic catalogs. We keep the current status in the list of medical marijuana strains available in Polish pharmacies.
Which producers supply Gastro Pop to Polish pharmacies?
One. Gastro Pop is supplied to Poland exclusively by Four 20 Pharma, and this corresponds to one registered position, described in two databases under slightly different name records. Therefore, the patient does not choose between versions of this strain, but between it and another raw material with a similar active substance content.
| What we compare | Record in budcare.pl | Record in medweed.pl |
|---|---|---|
| Producer | Four 20 Pharma | Four 20 Pharma |
| Registered name without numerical part | Cannabis flos Four20Pharma | Cannabis flos |
| Plant type designation | hybrid with indica dominance | hybrid |
| THC content considering tolerance | 24.3-29.7% | tolerance not provided |
| Number of profile positions | four | one |
The registered name is not a trade name, and both databases record it differently. The difference comes down to how much of it has been copied: one appends the producer’s abbreviation, while the other leaves only the designation of the pharmaceutical form. We intentionally omit the numerical part in both cases.
The number entered in this name is a value declared by the producer for the batch, not a measurement result of a specific package. The deviation from it can reach one-tenth, so quoted alone it promises precision that does not exist. Therefore, we provide the active substance content here only as a range, not as a point on a scale.
The same producer is responsible in this cluster for six cultivars, so its documentation and the way of describing batches recur with several other strains. We have gathered them in a separate text about this producer. The full list of strains present in Polish pharmacies is maintained in the cluster hub. The registered name does not distinguish versions of the same raw material, as it defines the form and producer, not the batch that the pharmacy currently has on the shelf.
What does Gastro Pop smell and taste like?
- caryophyllene caryophyllene
- linalool linalool
- myrcene myrcene (leading in the pharmacy list)
- ocimene ocimene
Sources describe this flower as fruity-sweet with a distinct fuel note, and that is all that can be said about its smell from the documentation. Aroma descriptions in strain databases are catalog labels, not results of sensory analysis conducted on the batch that reached the Polish pharmacy. The trade name suggests dessert but does not describe the composition.
Where do these three descriptions come from? The strain card in one of the Polish databases assigns it scent markers: fruity, sweet, and fuel-like. The strain receives such markers as a whole, so they describe more of an idea about the genetic line than a specific batch of flower sitting in the pharmacy fridge.
The perception of the smell also changes on the way to the patient. Pharmacy flower may undergo processing that limits the number of microorganisms, is tightly packaged, and sits for months, with volatile components diminishing at each of these stages. Therefore, the description from the breeder’s catalog and the impression from an opened package may not match, and the discrepancy between them does not in itself indicate a flaw in the product.
Finally, the smell is often confused with the composition. Terpenes are responsible for the aroma, but the order of positions in the profile does not directly translate to what is felt upon opening the package, as the detection threshold for each of them lies elsewhere.
How long does it take for Gastro Pop to take effect and how long does the effect last?
Just like any other flower of similar potency: the rate is determined by the method of administration, not the strain name. No separate measurement has been published for Gastro Pop, so the ranges below describe the methods of administration and should be read as such. The difference between them can be greater than the difference between two cultivars.
The method 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 ingestion | |
|---|---|---|
| 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 |
The content of the active substance changes the size of the dose here, not the clock. A position from the upper part of the range carries more active substance in the same volume of flower than a weaker position, so a volume-comparable dose is not a dose comparable in terms of potency. The course over time remains unchanged.
What is known and what is not known about the effects of Gastro Pop?
Nothing is known for the strain itself. No clinical study involving it has been published, and what we have pertains to a single component of the profile and comes from studies on rodents. Below we separate these two layers: measurement results separately, strain database description separately. Neither of them speaks about a patient taking this flower.
Let’s start with what the databases themselves have not established. Two Polish services describing this strain differ in the composition of the profile: one lists four positions, including caryophyllene, linalool, and ocimene, while the other provides only myrcene. We do not quote shares because none of the sources states what they refer to, and the sum of all positions can stop below half in one set, while in another it can reach four-fifths. Common to both descriptions is myrcene, and it is the leading terpene here.
| Study | Model and method of administration | What was shown |
|---|---|---|
| Rao VS et al., 1990 Journal of Pharmacy and Pharmacology PMID:1983154 |
rodent (mouse) | Myrcene (10-40 mg/kg) reduced pain responses in mice in hot plate and writhing tests induced by acetic acid; the effect was reversed by naloxone and yohimbine, indicating involvement of alpha2-adrenergic receptors and release of endogenous opioids. |
| do Vale TG et al., 2002 Phytomedicine PMID:12587690 |
rodent (mouse, intraperitoneal administration) | Myrcene administered intraperitoneally (100-200 mg/kg) reduced locomotor activity in mice in the open field test, prolonged sleep induced by pentobarbital (at 200 mg/kg about 2.6 times), and reduced the number of entries into the open arms of the elevated plus maze, which the authors described as a weak anxiogenic effect, not anxiolytic. |
| Wagner JK et al., 2024 NeuroSci PMID:39728677 |
rodent (mouse, vapor inhalation) | With short puffs of vapor, mimicking inhalation in humans, beta-myrcene acted anxiolytically in the elevated plus maze in female mice, and in males only with a single puff. Unlike linalool, myrcene did not produce a synergistic effect with cannabidiol in either sex. |
The boundary of these results is as important as the results themselves. In humans, it has not been shown that myrcene alone alleviates insomnia at doses typical for inhalation of flower. The direction of the effect in rodents depends on the method of administration and sex: after intraperitoneal injection in 2002, a slightly anxiogenic effect was described, while after inhalation in 2024, an anxiolytic effect was observed in females. These two results do not negate each other; they show that the conclusion depends on conditions that no popular strain database provides. What these studies imply for the terpene itself, we analyze separately.
Finally, there remains the descriptive layer. The database listing four profile positions assigns this strain a relaxing and balanced effect, but such a designation does not come from measurement or clinical observation, but from catalog convention. We record it as information about the source, not about the raw material.
What side effects have been reported after Gastro Pop?
None under this name. Safety oversight links reporting to the medicinal product and batch number, not to the cultivar, so there is no compilation of symptoms specifically attributed to this strain. The description below pertains to the flower as a raw material, not this position. The absence of such a compilation is an answer here, not a gap in the text.
Reports of side 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 symptoms 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 that increases 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.
The only thing that can be added for this position concerns its potency. The upper part of the range provided above is high, and with the dose, the intensity of the symptoms mentioned earlier increases, especially anxiety. This is a conclusion from the relationship between dose and response, described for the raw material, not an observation collected for Gastro Pop.
How to vaporize Gastro Pop?
There is no specific recipe for this strain, as none exists. A reference point may be the boiling point of the leading terpene, for myrcene set at around 166.8 °C under atmospheric pressure. The number on the device display is not the temperature of the flower itself, and this difference determines what from the profile will evaporate.
The boiling points of the other profile positions are higher. Ocimene evaporates at 177 °C, linalool at about 195.5 °C, and caryophyllene only near 257.5 °C. A lower setting takes mainly the most volatile components from the flower; a higher one extracts more, but some lighter components may have already escaped by then. Three of these four positions are mentioned by only one of the sources, so we reproduce the order of evaporation for a composition that the second database does not confirm.
The vaporizer setting and the temperature of the flower are two different quantities, and confusing them is the most common mistake when reading terpene tables. We discuss this in the text about why the device setting does not correspond to the temperature of the flower. The temperature tables themselves may also be incomparable, as some values were measured under reduced pressure, and we analyze that separately.
The other profile positions are described in separate texts: caryophyllene, linalool, and ocimene. The practical conclusion is one: the setting changes the composition of the vapor, not just its quantity.
Which strains are related to Gastro Pop?
| Strain | Common parent | Leading terpene | Producers |
|---|---|---|---|
| Facade | Apples And Bananas | limonene | Synoptis Pharma |
| Modified Gas | Grape Gasoline | limonene | Cantourage |
| Pink Certz | Grape Gasoline | nerolidol | S-LAB |
Three strains available in Polish pharmacies: Facade, Modified Gas, and Pink Certz. However, the kinship is distributed on two sides of the lineage, as the first shares a fruity parent with Gastro Pop, while the other two share a fuel parent. A common parent does not imply a similar composition or similar effects. Siblings speak of origin, not of how the raw material will act.
| Strain | Common parent with Gastro Pop | Second parent |
|---|---|---|
| Facade | Apples and Bananas | Eye Candy |
| Modified Gas | Grape Gasoline | First Class Funk |
| Pink Certz | Grape Gasoline | The Menthol |
The division into two branches is not just an organizational curiosity. Facade enters this family through Apples and Bananas, which is linked in descriptions to sweetness, while Modified Gas and Pink Certz enter through Grape Gasoline, linked to a fuel note. Those looking for aromatic similarity will find it more likely within one branch than across both.
Siblings are determined from the lineage graph, not from name similarity. A common part of the name does not prove anything in either direction, as breeders assign it freely, and the same words recur in lines without a common origin. Therefore, the list above is short and closed: it includes only cultivars for which both sides of the lineage are documented and are currently available in Polish pharmacies.
Not every strain has such a list. A parent that is a landrace or a broad family style does not define siblings, as that is a category, not a single strain, so an empty cell can be a correct result, not a lack of data.
Frequently asked questions about the Gastro Pop strain
Is Gastro Pop an indica strain or a hybrid?
It depends on which database you read. One Polish source describes it as a hybrid with indica dominance, while the other describes it simply as a hybrid. Such a label is a catalog convention and does not result from measurement, so it should not be relied upon for dose size decisions.
What is the THC content in this position?
The source provides one value declared by the producer, and considering its tolerance, the THC content falls within the range of 24.3-29.7%. We provide only the range, as a single number would suggest a measurement of a specific package, while it is a value for the entire batch.
Does Gastro Pop help with sleep?
It is unknown. No studies involving humans have been published for this strain, and studies on its leading terpene have been conducted on mice and yielded results dependent on the method of administration and the sex of the animals.
Why do you not provide percentage shares of terpenes?
Because none of the sources states what these shares refer to. Sums provided for the same positions can be close to half in one set and reach four-fifths in another, so a number without a denominator would appear to be a measurement, which it is not.
Is Gastro Pop consistently available in Polish pharmacies?
No. Availability depends on the release of the next batch by the producer and the stock in the wholesaler, not on the presence of the strain in genetic catalogs. We keep the current status in the list of strains available in Polish pharmacies.
Which strains are siblings of Gastro Pop?
There are three in Polish pharmacies: Facade with the common parent Apples and Bananas, and Modified Gas and Pink Certz with the common parent Grape Gasoline. However, a common parent does not imply a similar profile composition or similar effects.
Our cannabis flower category includes products available over the counter and does not contain the pharmacy raw material described above.
Cannabis flower is a pharmaceutical raw material dispensed by a doctor’s prescription in the Rpw category.
The material is for informational purposes and does not replace the advice of a doctor or pharmacist.
Editorial text: ubucha.pl editorial team.







