It sounds like you're dealing with a challenging situation, and it's good that you've gathered evidence through self-experimentation and research.
The specific advice regarding taking progesterone without food may not have a single introduction date, as this information can vary depending on the manufacturer and region. However, it's known that the absorption and metabolism of certain progesterone formulations can be affected by food intake, which may explain your experiences.
Some forms of oral micronised progesterone, like Utrogestan, are often recommended to be taken on an empty stomach because food can increase its absorption, potentially leading to higher blood levels and side effects similar to what you describe (feeling intoxicated or sedated). Pharmacists are aware of this, but it may not always be explicitly stated on labels or when the medication is prescribed.
Here are some steps you could consider for building your case:
1. Medical Literature: Search for clinical studies or drug information that links progesterone with side effects after food intake. You might focus on articles discussing pharmacokinetics (how the body absorbs and processes the drug) when taken with food. The exact year of such guidance might be hard to pin down, but gathering medical literature showing this effect could support your argument.
2. Manufacturer Guidelines: Contact the drug companies that produce the progesterone you’re using. They may be able to provide documentation about changes in recommended usage or safety alerts. You've already taken screenshots, which is a great start.
3. Pharmacy Consultation: Reach out to pharmacists for professional input on why this advice may not always appear on prescription labels, even though it can have such significant effects. A written statement or opinion from a pharmacist could strengthen your case.
4. Neurologist Input: Although your referral to the epilepsy clinic wasn’t ideal, consider getting their report and noting any discrepancies. You could bring this up in future discussions with specialists to clarify that your symptoms align more with progesterone effects than epilepsy.
5. DVLA: While this might seem daunting, if your symptoms were truly due to drug side effects and not a neurological condition, you may be able to present a strong case that the episodes are controlled once you manage your medication.
If you gather enough clinical and pharmacological data linking your symptoms to the timing of food with progesterone, you could potentially clarify this with your healthcare provider and even DVLA.