Cold Sores Causes and Treatment

Symptoms Cold sores manifest as fluid-filled blisters that appear in groups around the lips. An episode begins with tightening, itching, burning, pulling, and tingling before the skin affection becomes visible. As the episode progresses, the vesicles coalesce, break open, crust over, and heal. The lesions, some of which are painful, can also occur on other … Cold Sores Causes and Treatment

Penciclovir

Products Penciclovir is commercially available as a cream and tinted cream (Fenivir). It has been approved in many countries since 1997. Famvir cream is out of commerce. Structure and properties Penciclovir (C10H15N5O3, Mr = 253.3 g/mol) is a mimetic of the DNA building block 2′-deoxyguanosine and is structurally related to aciclovir. It exists as a … Penciclovir

Nucleic Acids

Structure and properties Nucleic acids are biomolecules found in all living things on Earth. A distinction is made between ribonucleic acid (RNA, RNA, ribonucleic acid) and deoxyribonucleic acid (DNA, DNA, deoxyribonucleic acid). Nucleic acids are polymers composed of so-called nucleotides. Each nucleotide consists of the following three units: Sugar (carbohydrate, monosaccharide, pentose): ribose in RNA, … Nucleic Acids

Famciclovir

Products Famciclovir is commercially available in the form of film-coated tablets (Famvir). It has been approved in many countries since 1995. Structure and properties Famciclovir (C14H19N5O4, Mr = 321.3 g/mol) is the orally available prodrug of penciclovir, which is itself a prodrug of penciclovir triphosphate. Famciclovir exists as a white to yellowish powder that is … Famciclovir

Pencivir

Introduction Pencivir is used to treat cold sores. It contains the active ingredient penciclovir, which is a so-called antiviral, a drug used to inhibit the proliferation of viruses. Lip herpes is caused by the herpes simplex virus type 1. Genital herpes on the other hand is caused by herpes simplex virus type 2. Pencivir is … Pencivir

Side effects | Pencivir

Side effects Pencivir is generally well tolerated. It must not be used if you are allergic to acyclovir or to drugs containing penciclovir. Here it can come to hypersensitivity reactions. This includes the occurrence of rashes, hives, itching or water retention, which can appear at the affected area, but also beyond. When using Pencivir, there … Side effects | Pencivir

Prodrugs

What are prodrugs? Not all active pharmaceutical ingredients are directly active. Some must first be converted to the active substance by an enzymatic or non-enzymatic conversion step in the body. These are the so-called . The term was introduced by Adrien Albert in 1958. It is estimated that up to 10% of all active ingredients … Prodrugs

Aciclovir Lip Cream

Products Lip creams containing aciclovir have been approved in many countries since 1997 (Zovirax Lip Cream, generic). Structure and properties Aciclovir (C8H11N5O3, Mr = 225.2 g/mol) exists as a white crystalline powder that is sparingly soluble in water. It mimics 2′-deoxyguanosine. Effects Aciclovir (ATC D06BB03) is antiviral against herpes simplex viruses. It is a prodrug … Aciclovir Lip Cream

Penciclovir: Effects, Uses & Risks

The active medical ingredient penciclovir is used as a virostatic agent for the therapy of herpes infections. When viewed chemically, it is a compound that has functional and structural similarities to guanine. Penciclovir is approved in the United States and Europe, including German-speaking countries (Germany, Austria, Switzerland). What is penciclovir? Penciclovir is an analog of … Penciclovir: Effects, Uses & Risks