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Haloperidol is a first-generation antipsychotic used for psychosis, mania, severe agitation and selected movement or behavioural disorders. Some injectable products also cover delirium and postoperative nausea or vomiting.
Haloperidol decanoate is a long-acting first-generation antipsychotic injection licensed for maintenance treatment of schizophrenia and schizoaffective disorder in adults already stabilised with oral haloperidol.
Heparin calcium is an injectable unfractionated heparin anticoagulant. It helps prevent existing clots from enlarging and reduces new clot formation.
Heparin sodium reduces the blood’s ability to clot. Depending on the product, it can prevent or treat blood clots, prevent clotting during procedures such as haemodialysis, or keep intravenous devices open.
Heparinoid is a topical, heparin-like anticoagulant with local anti-inflammatory effects. It is used for superficial thrombophlebitis, bruising and haematoma.
A non-live vaccine that stimulates immunity against hepatitis A and hepatitis B. It is licensed for non-immune children and adolescents aged 1 to 15 years who need protection against both infections, where hepatitis B exposure risk is relatively low while immunity develops.
An inactivated vaccine that trains the immune system to recognise hepatitis A virus. It is mainly used for people at increased risk of infection, transmission or serious illness.
A non-live vaccine containing inactivated hepatitis A virus. It stimulates immunity and is usually offered to people at increased risk of infection, transmission or serious illness.
A combined, non-live vaccine containing inactivated hepatitis A virus antigen and recombinant hepatitis B surface antigen. It is used for people who are not immune and are at risk of both infections.
Hepatitis B immunoglobulin is a human plasma-derived antibody preparation that provides rapid, temporary protection against hepatitis B. It is usually used after significant exposure or for selected people not yet protected by vaccination.
A recombinant, adjuvanted hepatitis B vaccine for people aged 15 years and over with renal insufficiency. It helps develop antibodies against hepatitis B virus but cannot treat an existing infection.
Hepatitis b vaccine (rDNA) is a non-live vaccine made using recombinant hepatitis B surface antigen. It helps prevent hepatitis B in people who are not immune, particularly those with increased exposure risk or kidney failure.
Hexetidine is a locally acting antiseptic mouthwash used for minor mouth and throat conditions, including gingivitis, mouth ulcers, sore throat and oral thrush.
Hexylresorcinol is a local anaesthetic with mild antiseptic activity. The selected UK lozenge temporarily relieves sore throat and associated pain.
Histamine dihydrochloride has two licensed roles: an injectable formulation used with interleukin-2 to maintain first remission in adults with acute myeloid leukaemia, and a skin-prick formulation used as a positive control during allergy testing.
Horse anti-human T lymphocyte immunoglobulin is a horse-derived antibody treatment that reduces immune-system activity, particularly T lymphocytes. In the UK, it is used with other immunosuppressive treatment for certain people with acquired moderate to severe aplastic anaemia when stem-cell transplantation is unsuitable or a suitable donor is unavailable.
Human albumin is a plasma protein purified from donated human blood. It is infused into a vein in hospital to restore or maintain circulating blood volume when volume deficiency is confirmed and a colloid is appropriate.
A plasma-derived replacement for a protective protein in the blood and lungs. It is used in selected adults with severe inherited deficiency and progressive emphysema to slow lung-tissue loss alongside optimal respiratory care.
Human anti-D immunoglobulin is a plasma-derived preparation containing antibodies against the RhD antigen. It is usually given to an RhD-negative person to prevent anti-D antibodies forming during pregnancy or after exposure to RhD-positive blood.
Human C1-esterase inhibitor is a plasma-derived replacement for a naturally occurring blood protein. It treats and helps prevent swelling attacks in hereditary angioedema.
A human plasma-derived prothrombin complex concentrate containing clotting factors II, VII, IX and X and proteins C and S. It rapidly replaces deficient vitamin K-dependent factors, mainly for urgent bleeding or surgery in people treated with vitamin K antagonists such as warfarin.
Human coagulation factor VIII is a plasma-derived clotting-factor replacement. It temporarily increases factor VIII activity in people with haemophilia A, helping blood form a stable clot and prevent or control bleeding.
A plasma-derived concentrate containing factor VIII and von Willebrand factor. The selected UK product prevents and treats bleeding in people of all ages with haemophilia A.
Human coagulation factor X is a plasma-derived clotting-factor replacement. It temporarily replaces factor X in people with hereditary factor X deficiency, helping their blood form a stable clot.
Human cytomegalovirus immunoglobulin (CMVIG) is a plasma-derived preparation containing high levels of antibodies against cytomegalovirus (CMV). It helps prevent clinical CMV illness during immunosuppressive treatment, particularly after transplantation.
Human fibrinogen replaces fibrinogen, also called coagulation factor I. It helps form the fibrin mesh that stabilises blood clots and is used when fibrinogen is absent, reduced or depleted during severe bleeding.
A plasma-derived fibrin sealant applied directly to tissue during surgery. It helps control bleeding when standard surgical techniques are insufficient and can support sutures in vascular surgery.
Human hemin is a haem replacement made from human blood. In specialist hospital care, it treats acute attacks of certain hepatic porphyrias by reducing harmful haem precursors.
A plasma-derived preparation containing IgG antibodies against hepatitis B surface antigen. It provides immediate, temporary passive protection after certain exposures and can help prevent hepatitis B recurrence after liver transplantation.
Human immunoglobulin is a plasma-derived preparation containing mainly IgG antibodies. It replaces missing antibodies or modifies harmful immune activity in selected inflammatory and neurological conditions.
Human insulin is laboratory-produced insulin that acts like the hormone made by the pancreas. It lowers blood glucose in diabetes. UK products include soluble short-acting and isophane intermediate-acting insulin.
Human normal immunoglobulin is a purified preparation of antibodies, mainly immunoglobulin G, obtained from pooled human plasma. It replaces missing antibodies in immunodeficiency and some intravenous products also modify harmful immune activity in selected inflammatory, neurological and blood disorders.
A recombinant, non-infectious vaccine that helps protect against selected human papillomavirus (HPV) types. It prevents certain HPV-related precancerous lesions, cancers and genital warts, but does not treat existing HPV infection or disease.
Human plasma proteins is pooled human plasma treated to reduce viral risk. It supplies a broad range of clotting proteins when several factors need replacing or during therapeutic plasma exchange.
Human prothrombin complex is a plasma-derived concentrate of proteins needed for blood clotting. It is given into a vein in hospital to replace these factors rapidly and control or prevent serious bleeding.
Human serum albumin is a plasma-derived version of a protein normally found in blood. It is infused into a vein to restore or maintain circulating blood volume when deficiency has been demonstrated and a colloid is appropriate.
Human tetanus immunoglobulin is a plasma-derived preparation containing antibodies against tetanus toxin. It provides temporary protection after certain tetanus-prone injuries and may be given alongside tetanus vaccination.
This human plasma-derived antibody preparation provides temporary passive immunity after exposure to chickenpox or shingles. It is licensed for susceptible people at increased risk of severe infection, but intramuscular VZIG has been withdrawn in the UK and other post-exposure options are generally used.
Hyaluronidase is an enzyme that temporarily breaks down hyaluronic acid in connective tissue. It helps injected fluids, local anaesthetics and some medicines spread through tissue, and can assist absorption of excess fluid or blood.
Hydralazine hydrochloride is a prescription vasodilator that relaxes small arteries, reducing resistance to blood flow. In adults, tablets are licensed as add-on treatment for moderate to severe hypertension and, with long-acting nitrates, for selected chronic heart failure. Intravenous treatment is licensed for hypertensive emergencies and hypertension with renal complications.
Hydrated disodium ceftriaxone is the salt form of ceftriaxone, a third-generation cephalosporin antibiotic. It is injected or infused to treat susceptible bacterial infections.
This combines irbesartan, an angiotensin II receptor blocker, with hydrochlorothiazide, a thiazide diuretic. It treats essential hypertension in adults whose blood pressure is not adequately controlled by either component alone.
This combines an ACE inhibitor with a thiazide diuretic to lower blood pressure. Selected UK products are licensed for mild to moderate hypertension in adults already stabilised on the separate components in matching proportions.
This treatment combines an angiotensin II receptor blocker with a thiazide diuretic. The selected UK product treats essential hypertension when either component alone has not adequately controlled blood pressure.
This combines olmesartan, an angiotensin II receptor blocker, with hydrochlorothiazide, a thiazide diuretic. It is used for adults with essential hypertension when olmesartan alone has not controlled blood pressure adequately.
This tablet combines telmisartan, an angiotensin II receptor blocker, with hydrochlorothiazide, a thiazide diuretic. It treats essential hypertension in adults when telmisartan alone has not controlled blood pressure adequately.
Hydrochlorothiazide + valsartan combines an angiotensin receptor blocker with a thiazide diuretic. It is licensed for adults with essential hypertension not adequately controlled by either component alone.
Hydrocortisone is a corticosteroid that replaces the natural hormone cortisol or reduces inflammation. Oral formulations are mainly used for adrenal insufficiency and congenital adrenal hyperplasia; skin preparations treat inflammatory conditions such as eczema and dermatitis.
This prescription-only skin ointment combines a mild corticosteroid with a tetracycline antibiotic. It treats certain inflamed skin conditions with a secondary bacterial infection.
Hydrocortisone acetate is a mild corticosteroid applied to the skin. It reduces inflammation in contact dermatitis, eczema and reactions to insect bites.
This ointment combines a mild corticosteroid that reduces inflammation and itching with a local anaesthetic that numbs pain. It relieves symptoms around or inside the anus but does not remove the underlying cause.
This topical cream combines miconazole, an antifungal, with hydrocortisone, a mild corticosteroid that reduces inflammation. It treats athlete’s foot or candidal intertrigo accompanied by redness, itching or swelling.
Hydrocortisone butyrate is a topical corticosteroid that reduces skin inflammation. UK products are used for conditions such as eczema, dermatitis and selected forms of psoriasis when infection is not the cause.
Hydrocortisone sodium phosphate is a water-soluble corticosteroid that provides hydrocortisone. Depending on its formulation, it replaces cortisol or treats systemic, soft-tissue or eye inflammation.
Hydrocortisone sodium succinate is a water-soluble corticosteroid given by injection or infusion when a rapid systemic effect is needed, including some severe inflammatory, allergic and adrenal emergencies.
Hydrogen peroxide is an oxidising antiseptic that breaks down rapidly on contact with tissues. UK medicinal products include a cream for superficial skin infections and a solution historically licensed as a mild skin disinfectant, mouthwash or gargle.
Hydromorphone hydrochloride is a strong opioid painkiller. Selected UK prolonged-release capsules and injections or infusions are licensed to relieve severe pain in cancer.
Hydroxocobalamin is an injectable form of vitamin B12 used to prevent or treat vitamin B12 deficiency and related anaemia. Cyanokit is a specialised intravenous emergency antidote for known or suspected cyanide poisoning.
Hydroxycarbamide is an oral cytotoxic treatment that slows DNA production in rapidly dividing cells. Selected UK products are licensed for sickle cell disease, certain myeloproliferative disorders and specific cancer treatment.
Hydroxychloroquine sulfate is an immune-modulating treatment used mainly for rheumatoid arthritis, lupus and certain inflammatory skin conditions. Benefit can take several weeks, and it is not a rapid-acting painkiller.