Active Ingredients A to Z

Every branded generic we stock, organised by active ingredient, so you can find the affordable alternative to any big-name original. The brand changes; the active ingredient does not.

Halobetasol Halobetasol is a very-high-potency topical corticosteroid used for short courses on stubborn skin conditions such as psoriasis. Prolonged or widespread use can thin the skin permanently and suppress the body's own cortisol production, so treatment is strictly time-limited. 1 medicine View Halobetasol Haloperidol Haloperidol is a typical antipsychotic used for schizophrenia, acute agitation and tic disorders. It carries a higher risk of movement disorders such as tardive dyskinesia and can prolong the heart's QT interval, raising the risk of a dangerous irregular heartbeat. 1 medicine View Haloperidol Hydralazine Hydralazine is a direct-acting vasodilator used for high blood pressure and heart failure; with long-term use it can trigger a reversible lupus-like syndrome, so watch for new joint pain, rash, or fever. 1 medicine View Hydralazine Hydrochlorothiazide Hydrochlorothiazide is a thiazide diuretic for high blood pressure and fluid retention; long-term use raises the risk of non-melanoma skin cancer, so daily sun protection matters. 9 medicines View Hydrochlorothiazide Hydroquinone Hydroquinone is a topical skin-lightening treatment for melasma and dark spots; used at high strength or for long periods, it can cause ochronosis, a blue-black skin darkening that may be permanent. 1 medicine View Hydroquinone Hydroxycarbamide Hydroxycarbamide (hydroxyurea) is a cytotoxic medicine used in chronic myeloid leukaemia, other blood disorders and sickle cell disease that suppresses bone marrow, so regular blood counts are essential and it should be avoided in pregnancy. 1 medicine View Hydroxycarbamide Hydroxychloroquine Hydroxychloroquine treats rheumatoid arthritis, lupus, and malaria; long-term use can cause irreversible retinal damage, so regular eye exams are required, and it can also affect heart rhythm. 1 medicine View Hydroxychloroquine Hydroxyzine Hydroxyzine is an antihistamine used for itching, short-term anxiety, and sedation before procedures; it can prolong the heart's QT interval, so it should be avoided with other QT-prolonging medicines. 1 medicine View Hydroxyzine