The WMIC produces and contributes to a range of medicines-related publications for healthcare professionals and members of the public.

COVID-19 Vaccine Advice

On 1 September 2021 the Joint Committee on Vaccination and Immunisation (JCVI) advised that a third primary dose of COVID-19 vaccine be offered to individuals aged 12 years and over with severe immunosuppression in proximity of their first or second primary COVID-19 vaccine doses. Here the WMIC provide a list of medicines that corresponds to the JAK inhibitors and other biologic immune modulators mentioned in the JCVI advice and suggest appropriate timing of a third primary dose of COVID‑19 vaccine. [updated 23 September 2021]

Advice for administration of third primary dose of COVID-19 vaccine for individuals on immunosuppressive or immunomodulating therapy

UKMi Medicines Q&As

Medicines Q&As are produced by UKMi pharmacists throughout the UK, and provide evidence-based, and quality controlled answers to common or unusual enquiries made to Medicines Information services.

UKMi Q&As that have been produced by and are maintained by the WMIC (the specialist UKMI centre for porphyria and complementary medicine) are listed below. These and all current UKMi Q&As are available on the Specialist Pharmacy Services website.

Is there a role for inhaled epoprostenol, inhaled nitric oxide or sildenafil to treat secondary pulmonary hypertension and hypoxaemia in ICU patients with acute respiratory distress syndrome?

Turmeric: potential adverse effects and interactions

Cannabidiol oil – potential adverse effects and drug interactions

How should medicines be dosed in children who are obese?

What is the risk of GI bleeding with SSRIs?

Which commonly used nebuliser solutions are compatible?

What is the equivalent dose of oral prednisolone to IV hydrocortisone?

How should intravenous potassium chloride be administered in adults?

What effect does metformin have on hirsutism/acne?

How should crusted and other forms of difficult-to-treat scabies be managed?


What medicines are considered safe in the acute porphyrias?

How should haem arginate (human hemin) be administered in the management of acute porphyria?

What advice should be given to patients with porphyria who intend to travel?

What are the restrictions on prescribing for patients with non-acute porphyria?

Are topical medicines safe in people with porphyria?

What is the most suitable treatment for acne in a patient with porphyria?

What advice should be given to people with porphyria who are undergoing dental procedures?

Complementary medicine

Chondroitin – drug interactions

Chondroitin – what are the adverse effects?

Is it safe to take herbal medicines during pregnancy?

Is it safe for breast feeding women to take herbal medicines?

Considerations when addressing questions about potential for adverse effects and drug interactions with homeopathic remedies.


Head Lice – January 2014

Note: Malathion (Derbac M) is among the suggested treatments in the above bulletin, but is currently unavailable. Alternative treatments are dimeticone and wet combing (see bulletin for details).

Cardiff & Vale UHB prescribing resources

Good Prescribing Guide and INFORM Formulary

The Good Prescribing Guide is available on the microguide app via iTunes and Google play store

The Guide is intended to supplement the British National Formulary and Cardiff and Vale INFORM Formulary and to provide information on local practices within the University Health Board. The guidelines are intended for adult secondary care practice. The Department of Child Health in Cardiff and Vale University Health Board produce Clinical Guidelines for use in paediatrics.

Good practice guides

How to do an enquiry on adverse effects of complementary or alternative medicines

How to do an enquiry on interactions between complementary or alternative medicines and conventional medicines

Other publications

The following article was adapted from a review commissioned and written by the WMIC for the Neonatal and Paediatric Pharmacists Group:

McArtney R, Bailey A, Champion H. What is a ketogenic diet and how does it affect the use of medicines? Arch Dis Child Educ Pract Ed. 2017; 102:194-9.

In conjunction with the Department of Biochemistry and Immunology, University Hospital of Wales, WMIC has  published two articles on safe prescribing in the acute porphyrias:

Lockett CD and Badminton MN.  Safe prescribing in the autosomal dominant acute porphyrias: a practical approach: Part I. Adverse Drug Reaction Bulletin.  August 2015; No. 293: pp. 1131 – 1134

Lockett CD and Badminton MN.  Safe prescribing in the autosomal dominant acute porphyrias: a practical approach: Part II. Adverse Drug Reaction Bulletin.  October 2015; No. 294: pp. 1135 – 1138