EXCIPIENTS | ROUTE(S) OF ADMINISTRATION | Risk |
| Wheat starch | Oral | Wheat allergy (other than gluten intolerance or celiac disease). |
| Peanut oil | All | Allergy to peanuts (groundnuts, etc.) or soy (hives, anaphylactic shock: generalized rash, respiratory difficulties, drop in blood pressure). |
| Azo dyes (tartrazine E102, sunset yellow S E110, azorubine E122, amaranth E123, cochineal red A E124, allura red AC E129, brilliant black E151) | Oral | Allergy (e.g., eczema, hives, asthma, anaphylactic shock). Cross-allergy (allergy to one dye leads to allergy to other components of the class). |
| Aspartame | Oral | In cases of phenylketonuria (a rare hereditary genetic disease). Balsam of Peru Cutaneous Skin allergy (e.g., eczema). |
| Benzalkonium | Ocular | Eye irritation. Cutaneous Skin allergy. Respiratory Swelling of the nasal mucosa, respiratory discomfort. |
| Benzoic acid and benzoates | Cutaneous | Skin, eye, and mucous membrane allergy. Injectable Jaundice (infants under 1 month). |
| Benzyl alcohol | Injectable | Allergy or toxicity in children under 1 month or under 3 years depending on the dose. Bergamot oil Cutaneous Photosensitization (sensitivity to light). Bronopol Cutaneous Skin allergy (e.g., eczema). Cetostearyl alcohol, cetyl alcohol Cutaneous Skin allergy (e.g., eczema). Chlorocresol Cutaneous Skin allergy. |
| Ethanol (alcohol) | Oral, injectable | Dangerous for alcoholics. Children, individuals with liver insufficiency, epileptics, pregnant or breastfeeding women. Interactions with other medications, driving vehicles or operating machinery (from 3 g per day). |
| Formaldehyde | Cutaneous | Skin allergy (e.g., eczema). |
| Oral | Digestive disorders. |
| Fructose | Oral, injectable | Harmful to teeth. Fructose intolerance (rare hereditary disease). Low-sugar diet or diabetes (from 5 g per day). |
| Galactose | Oral, injectable | Galactose intolerance (rare hereditary disease). Low-sugar diet or diabetes (from 5 g per day). |
| Glucose | Oral, injectable | Harmful to teeth. Glucose intolerance (rare hereditary disease). Low-sugar diet or diabetes (from 5 g per day). |
| Liquid Maltitol (hydrogenated glucose syrup) | Oral | Fructose intolerance (rare hereditary disease). Caloric intake and laxative effect (from 10 g per day). Glycerol Oral: Headaches and diarrhea (from 10 g per day). |
| Heparin | Injectable | Allergy to heparins and derivatives. Thrombocytopenia (a blood clotting disorder) due to heparins. |
| Butylated Hydroxyanisole E320 | Cutaneous | Skin allergy (e.g., eczema), eye and mucous membrane irritation. |
| Butylated Hydroxytoluene E321 | Cutaneous | Skin allergy (e.g., eczema), eye and mucous membrane irritation. |
| Lactitol E966 | Oral | Lactitol intolerance (rare hereditary disease). Caloric intake, digestive disorders, and laxative effect (from 10 g per day). |
| Lactose | Oral | Lactose intolerance (rare hereditary disease). Low-sugar diet or diabetes (from 5 g per day). Lanolin (wool fat): Cutaneous skin allergy (e.g., eczema). Latex (natural rubber), for example, in syringe caps: Allergic skin reactions or systemic allergy (hives, asthma, anaphylactic shock, etc.). |
| Maltitol E965, Isomaltitol E953 | Oral | Fructose intolerance (rare hereditary disease). Digestive disorders and laxative effect (from 10 g per day). Mannitol E421 Oral: Digestive disorders and laxative effect (from 10 g per day). |
| Organomercurials (thiomersal, mercury derivatives, etc.) | Ocular, injectable | Allergy. Cutaneous: Skin allergy (e.g., eczema), depigmentation. |
| Parabens (parahydroxybenzoates, etc.) | Oral, ocular, cutaneous | Skin or mucous membrane allergy. |
| Injectable, respiratory | Allergy (hives, respiratory discomfort). |
| Phenylalanine | All | In cases of phenylketonuria (a rare hereditary genetic disorder). |
| Potassium | Oral, injectable | Low-potassium diet, renal insufficiency. Intravenous: Pain at the IV injection site, phlebitis. |
| Propylene glycol and derivatives | Cutaneous | Skin allergy (e.g., eczema). |
| Oral, injectable | Symptoms similar to those caused by alcohol (from 400 mg/kg in adults or 200 mg/kg in children). |
| Castor oil and derivatives | Cutaneous | Skin allergy (e.g., eczema). |
| Injectable | Skin or general allergy (respiratory discomfort, anaphylactic shock). Oral: Laxative effect, digestive disorders. |
| Sucrose | Oral, injectable | Harmful to teeth. Sucrose intolerance (a rare hereditary disorder). Low-sugar diet or diabetes (from 5 g per day). Sesame oil: Skin or general allergy. Sodium: Oral, injectable. Low-sodium diet. |
| Soy and derivatives | All | Allergy to peanuts or soy (hives, anaphylactic shock: generalized rash, breathing difficulties, drop in blood pressure). Sorbic acid and sorbates: Cutaneous. Skin allergy (e.g., eczema). |
| Sorbitol | Oral, injectable | Fructose intolerance (a rare hereditary disorder). Laxative effect. Stearyl alcohol: Cutaneous. Skin allergy (e.g., eczema). |
| Invert sugar | Oral | Harmful to teeth. Fructose or glucose intolerance (a rare hereditary disorder). Low-sugar diet or diabetes (from 5 g per day). |
| Sulfites and derivatives (sulfur dioxide, sulfite of...) | Oral, injectable, respiratory | Skin allergy (e.g., hives) or general allergy (respiratory discomfort, anaphylactic shock). Xylitol: Oral. Laxative effect, digestive disorders (from 10 g per day). |