Medication & Drug Guides

Tretinoin Monograph: Indications and Safety

By ZaraMedsPosted on 10 September 2026Posted in Medication & Drug GuidesTagged Drug interactions, Oral administration, Side effect managementNo Comments

Tretinoin is a topical retinoid (a vitamin A derivative applied directly to the skin) authorised by the MHRA. In the UK, it is licensed to treat acne vulgaris (a long-term skin condition causing spots and inflamed lesions). Tretinoin accelerates epidermal cell turnover (the rate at which skin sheds and renews itself). This process reduces comedone […]

Sildenafil Citrate: Clinical Pharmacology and Safety Guide

By ZaraMedsPosted on 7 August 2026Posted in Medication & Drug GuidesTagged Impotence, Libido, sexual health, Sildenafil

Sildenafil Citrate is an approved phosphodiesterase type 5 (PDE5) inhibitor authorised by the MHRA in the UK for the management of erectile dysfunction. By blocking the breakdown of cyclic GMP, it enhances nitric oxide-mediated smooth muscle relaxation to improve penile blood flow safely and effectively. Core Chemical and Pharmacological Profile Parameter Clinical Specification Active Substance […]