Top 20 Most Frequently Shorted Medicines
Based on DHSC supply notifications and pharmacy reports from 2023-2026:
| # | Medicine | Category | Shortage Frequency |
|---|---|---|---|
| 1 | Methylphenidate (various brands) | ADHD | Ongoing since 2023 |
| 2 | Lisdexamfetamine (Elvanse) | ADHD | Recurrent |
| 3 | Oestradiol patches/gel | HRT | Improving |
| 4 | Amoxicillin suspension | Antibiotic | Seasonal |
| 5 | Fluoxetine liquid | Antidepressant | Recurrent |
| 6 | Carbamazepine | Epilepsy | Intermittent |
| 7 | Levothyroxine (specific brands) | Thyroid | Brand-specific |
| 8 | Prochlorperazine | Anti-nausea | Recurrent |
| 9 | Sodium valproate | Epilepsy | Intermittent |
| 10 | Metformin (specific formulations) | Diabetes | Improving |
| 11 | Sertraline | Antidepressant | Resolved |
| 12 | Atomoxetine | ADHD | Ongoing |
| 13 | Progesterone (Utrogestan) | HRT | Intermittent |
| 14 | Lisinopril | Blood pressure | Resolved |
| 15 | Quetiapine | Mental health | Improving |
| 16 | Candesartan | Blood pressure | Improving |
| 17 | Dexamfetamine | ADHD | Ongoing |
| 18 | Co-codamol | Pain relief | Intermittent |
| 19 | Diazepam | Anxiety | Improving |
| 20 | Nitrofurantoin | Antibiotic | Seasonal |
Patterns and Trends
ADHD Medications Dominate
ADHD medications account for the most persistent shortages in the UK. The combination of rapidly growing demand (400% increase in prescriptions over a decade) and controlled-substance production limits creates a structural supply gap. Read our full ADHD shortage analysis →
Mental Health Medicines Are Vulnerable
Antidepressants, anxiolytics, and antipsychotics appear frequently on shortage lists. Many are available from limited manufacturers, and demand has grown significantly post-pandemic as mental health needs have increased. See our mental health medication report →
Liquid Formulations Are Disproportionately Affected
You'll notice liquid/suspension formulations appear more often than tablets or capsules. This is because liquid medicines have shorter shelf lives, fewer manufacturers, and are more complex to produce. This particularly affects children and elderly patients who can't swallow tablets.
Seasonal Patterns Are Predictable
Antibiotics and some respiratory medicines follow seasonal patterns, with shortages peaking in winter. Better demand forecasting could help manufacturers prepare, but the variability of flu and respiratory seasons makes precise prediction difficult.
HRT Is Improving
After the crisis of 2022-2023, HRT supply has stabilised significantly. New suppliers, expanded manufacturing, and the appointment of an HRT supply coordinator have all helped. However, occasional disruptions still occur for specific products. Latest HRT updates →
Why Some Medicines Are More Vulnerable
Medicines most prone to shortages tend to share certain characteristics:
- Few manufacturers: Products made by only 1-2 companies have no backup if one has problems
- Low profit margins: Generic medicines with thin margins are less attractive for companies to produce, so fewer bother
- Complex manufacturing: Liquid formulations, patches, and injectable medicines are harder to make
- Controlled substances: Production quotas limit how much can be manufactured
- Single-source API: If the active ingredient comes from one factory, that's a single point of failure
- Short shelf life: Products that expire quickly can't be stockpiled
What You Can Do
If you take any medicine on this list:
- Sign up for MedWatch alerts for your specific medicine
- Don't wait until you're on your last day's supply to reorder
- Discuss backup plans with your GP in advance
- Know which alternatives exist for your medication
- Consider using a pharmacy with reliable supply for your particular medicine
Related
Current Shortages
Live tracker of all UK medicine shortages
Generic vs Branded Medicines
Understanding your alternative options
Why Medicine Shortages Happen
The root causes explained in detail
Page last updated: 7 February 2026. Data checked daily.