Acetaminophen/codeine oral solution. Each 5 mL of acetaminophen/codeine solution contains 12 mg of codeine and 120 mg of acetaminophen. The typical dose is 15 mL by mouth every 4 hours as needed. Do not take more than 3,000 mg to 4,000 mg of acetaminophen within a 24-hour period.For most, people codeine can be detected in their urine for up to 48 hours after their last use of the drug. However, it may be detectable for up to 1 week in chronic users. 5,6. It can be detected in saliva for 21 hours after last use. 6. It can be detected for up to 10 weeks in hair follicle tests. 7.Jul 24, 2023 · Codeine and guaifenesin is a combination medicine used to treat cough and chest congestion caused by allergies, the common cold, or the flu. codeine and guaifenesin will not treat a cough that is caused by smoking, asthma, or emphysema. Codeine and guaifenesin may also be used for purposes not listed in this medication guide. FDA approved a REMS for codeine to ensure that the benefits outweigh the risk. ... Tylenol, benzonatate, Benadryl, diphenhydramine, guaifenesin. Images. Codeine ...If you are 65 or older, use Guaifenesin AC Liquid (guaifenesin and codeine) with care. You could have more side effects. Different brands of Guaifenesin AC Liquid (guaifenesin and codeine) may have different doses for children. Talk with the doctor before giving Guaifenesin AC Liquid (guaifenesin and codeine) to a child.codeine/guaifenesin systemic Brand names: Cheratussin AC , Guaiatussin AC , Virtussin A/C , Robitussin-AC, Diabetic Tussin C Drug class: upper respiratory combinationsIf you are 65 or older, use Guaifenesin AC Liquid (guaifenesin and codeine) with care. You could have more side effects. Different brands of Guaifenesin AC Liquid (guaifenesin and codeine) may have different doses for children. Talk with the doctor before giving Guaifenesin AC Liquid (guaifenesin and codeine) to a child.Methods: In this multipractice, office-based, randomized clinical trial, guaifenesin was compared with guaifenesin plus codeine or guaifenesin plus dextromethorphan in patients with uncomplicated respiratory tract infections. Family physicians enrolled 97 patients between February 1988 and April 1990. Jul 24, 2023 · Codeine and guaifenesin is a combination medicine used to treat cough and chest congestion caused by allergies, the common cold, or the flu. codeine and guaifenesin will not treat a cough that is caused by smoking, asthma, or emphysema. Codeine and guaifenesin may also be used for purposes not listed in this medication guide. What is codeine and guaifenesin? What should I discuss with my healthcare provider before taking codeine and guaifenesin? How should I take codeine and guaifenesin? What happens if I miss a dose? What happens if I overdose? What should I avoid while taking codeine and guaifenesin? What are the possible side effects of codeine and guaifenesin?Generic name: Guaifenesin and Codeine [ gwye-FEN-e-sin-& KOE-deen ] Brand names: Cheratussin AC, Codar GF, Coditussin AC, G Tussin AC, Guaiatussin AC, ... show all 12 brands Drug class: Upper respiratory combinations Medically reviewed by Drugs.com. Last updated on May 5, 2023. Uses Before taking Warnings Dosage Side effects Overdose WarningBrand names: Tuzistra XR, Lexuss 210, Z-Tuss AC, Zodryl AC, Tuxarin ER. Drug class: upper respiratory combinations. Chlorpheniramine/codeine systemic is used in the treatment of: Allergic Rhinitis. Cold Symptoms.Guaifenesin/codeine (Guaiatussin ac, cheratussin ac, virtussin ac) is an inexpensive drug used to treat cough. It is more popular than comparable drugs. It is available in multiple generic and brand versions. Generic cheratussin ac is covered by most Medicare and insurance plans, but some pharmacy coupons or cash prices may be lower.Codeine, guaifenesin, and pseudoephedrine is a combination medicine used to treat cough, stuffy nose, and sinus congestion caused by allergies, the common cold, or the flu. This medicine will not treat a cough that is caused by smoking, asthma, or emphysema. Guaifenesin, also known as glyceryl guaiacolate, is an expectorant medication taken by mouth and marketed as an aid to eliminate sputum from the respiratory tract. Chemically, it is an ether of guaiacol and glycerine. It may be used in combination with other medications. [3]Drug encyclopedia Print codeine 10 mg-guaifenesin 100 mg/5 mL oral liquid View more photos The photos shown are samples only 7118 Medication name Warning Uses How to use Side effects Precautions Drug interactions Overdose Notes Missed dose Storage Important note Information last revised July 2023. Copyright (c) 2023 First Databank, Inc.Codeine is approved to treat pain and cough, and tramadol is approved to treat pain. These medicines carry serious risks, including slowed or difficult breathing and death, which appear to be a ...Jun 1, 2023 · Hydrocodone is a narcotic antitussive (cough suppressant). It acts directly on the cough center in the brain to relieve cough. Guaifenesin is used to help clear mucus or phlegm from the chest when you have congestion from a cold or flu. It works by thinning the mucus or phlegm in the lungs. How to use Guaifenesin-Codeine Tablet. Take this medication by mouth with or without food as directed by your doctor, usually every 4 to 6 hours as needed with a full glass of water (8 ounces or ... Common codeine side effects include: feeling dizzy or drowsy; nausea, vomiting, stomach pain; constipation; sweating; or. mild itching or rash. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.Codeine, guaifenesin, and pseudoephedrine is a combination medicine used to treat cough, stuffy nose, and sinus congestion caused by allergies, the common cold, or the flu. codeine, guaifenesin, and pseudoephedrine will not treat a cough that is caused by smoking, asthma, or emphysema.after a dosage increase. if you are older. if you have an existing lung problem. The side effects of codeine are similar to those of other opioids, and include: constipation. headache or dizziness. fatigue or drowsiness (especially soon after a dose) loss of appetite, nausea and vomiting. Always take medicines exactly as prescribed your doctor.Dec 12, 2022 · What is this drug used for? It is used to thin mucus so it can be taken from the body by coughing. It is used to relieve coughing. What do I need to tell my doctor BEFORE I take this drug? If you are allergic to this drug; any part of this drug; or any other drugs, foods, or substances. Schedule 5 (V) Drugs. The drug has a low potential for abuse relative to the drugs in schedule 4. The drug has a currently accepted medical use in treatment in the United States. Jan 10, 2021 · Typical dosing for Promethazine / codeine. Adults over 18 years old: The typical dose is 5 mL (1 teaspoonful) by mouth every 4 to 6 hours as needed. Do not take more than 30 mL (6 teaspoonfuls) in a day. Promethazine / codeine is not recommended for use in children under 18 years old. Methods: In this multipractice, office-based, randomized clinical trial, guaifenesin was compared with guaifenesin plus codeine or guaifenesin plus dextromethorphan in patients with uncomplicated respiratory tract infections. Family physicians enrolled 97 patients between February 1988 and April 1990. Hydrocodone is a narcotic antitussive (cough suppressant). It acts directly on the cough center in the brain to relieve cough. Guaifenesin is used to help clear mucus or phlegm from the chest when you have congestion from a cold or flu. It works by thinning the mucus or phlegm in the lungs.Codeine is an effective pain reliever; however, it is addictive, may cause constipation, and its pain-relieving effects vary markedly between individuals. Codeine should only be used for pain relief when other simpler analgesics, such as acetaminophen or ibuprofen, are not appropriate. 5. Tips. May be taken with or without food.Codeine is also used to treat diarrhoea. It works in the central nervous system and the brain to block pain signals to the rest of the body. It also reduces the anxiety and stress caused by pain. Codeine is available on prescription and comes as tablets, a liquid you swallow and as an injection. Codeine injections are usually only given in ...Jan 10, 2020 · CODEINE GUAIFENESIN- codeine phosphate, guaifenesin solution If this SPL contains inactivated NDCs listed by the FDA initiated compliance action, they will be specified as such. NDC What is this drug used for? It is used to thin mucus so it can be taken from the body by coughing. It is used to relieve coughing. What do I need to tell my doctor BEFORE I take this drug? If you are allergic to this drug; any part of this drug; or any other drugs, foods, or substances.The codeine containing cough syrups are available for over-the-counter purchase in federal pharmacy law, it similar to the process of buying Sudafed. Because of the codeine component, it is a controlled substance and some states have classified this in their pharmacy laws as prescription only.codeine/ guaifenesin liquid,oral possible synonyms: coditussin ac, dex-tuss, g tussin ac, gani-tuss nr, guaifenesin ac, guaifenesin-codeine, maxi-tuss ac, ninjacof-xg, tussiden cFind Guaifenesin coupons. Prices as low as $3.12, save up to 51.90% off the average retail price of $6.49 at pharmacies near you.How to use Guaifenesin W/Codeine Syrup. Take this medication by mouth with or without food as directed by your doctor, usually every 4 to 6 hours as needed with a full glass of water (8 ounces or ... Schedule 5 (V) Drugs. The drug has a low potential for abuse relative to the drugs in schedule 4. The drug has a currently accepted medical use in treatment in the United States. Codeine/guaifenesin Interactions. There are 486 drugs known to interact with codeine/guaifenesin, along with 16 disease interactions, and 1 alcohol/food interaction. Of the total drug interactions, 122 are major, 361 are moderate, and 3 are minor. Typical dosing for Promethazine / codeine. Adults over 18 years old: The typical dose is 5 mL (1 teaspoonful) by mouth every 4 to 6 hours as needed. Do not take more than 30 mL (6 teaspoonfuls) in a day. Promethazine / codeine is not recommended for use in children under 18 years old.For cough relief without relying on that ingredient, use an expectorant that contains guaifenesin, which thins mucus to make coughing easier. People with COVID-19 typically experience a dry cough ...Jan 20, 2021 · Robitussin AC (guaifenesin / codeine) is a combination of two medications: guaifenesin and codeine. Guaifenesin is an expectorant that thins and loosens the mucus in your lungs, making it easier to cough it up. Codeine is an opioid medication that works in your brain to lessen your urge to cough. Guaifenesin and Codeine. Basics. Name. Guaifenesin and Codeine. Pronunciation (gwye FEN e sin & KOE deen) Brand Names: US. Cheratussin AC [OTC] [DSC] Coditussin AC [OTC]Purpose. Codeine phosphate, USP 10 mg. Antitussive. Guaifenesin, USP 100 mg. Expectorant. Close. Uses. temporarily relieves: cough due to minor throat and bronchial irritation as may occur with a cold or inhaled irritants - your cough to help you sleep - helps loosen phlegm (mucus) and thin bronchial ... temporarily relieves:For regular (short-acting) oral dosage forms (capsules, oral solution, syrup, or tablets): For cough: Adults—200 to 400 milligrams (mg) every four hours. Children 6 to 12 years of age—100 to 200 mg every four hours. Children 4 to 6 years of age—50 to 100 mg every four hours. Children and infants up to 4 years of age—Use is not recommended .Guaifenesin is an expectorant. It works by thinning and loosening mucus in the airways, clearing congestion, and making breathing easier.If you are self-treating with this medication, it is ... Find patient medical information for acetaminophen-codeine oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings.Codeine, guaifenesin, and pseudoephedrine is a combination medicine used to treat cough, stuffy nose, and sinus congestion caused by allergies, the common cold, or the flu. This medicine will not treat a cough that is caused by smoking, asthma, or emphysema.cough. darkened urine. darkening of the skin. diarrhea. difficult or trouble breathing. difficulty swallowing. dizziness. dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position. fainting.Codeine is an effective pain reliever; however, it is addictive, may cause constipation, and its pain-relieving effects vary markedly between individuals. Codeine should only be used for pain relief... View more. Prescription only. Tramadol is a strong pain relief medicine effective for both general and nerve-related pain.Jul 26, 2023 · Codeine, guaifenesin, and pseudoephedrine is a combination medicine used to treat cough, stuffy nose, and sinus congestion caused by allergies, the common cold, or the flu. codeine, guaifenesin, and pseudoephedrine will not treat a cough that is caused by smoking, asthma, or emphysema. If you are 65 or older, use Virtussin A/C (guaifenesin and codeine) with care. You could have more side effects. Different brands of Virtussin A/C (guaifenesin and codeine) may have different doses for children. Talk with the doctor before giving Virtussin A/C (guaifenesin and codeine) to a child.Generic Name (S): codeine sulfate. Warnings: Codeine has a risk for abuse and addiction, which can lead to overdose and death. Codeine may also cause severe, possibly fatal, breathing problems. To ...Generic name: Guaifenesin and Codeine [ gwye-FEN-e-sin-& KOE-deen ] Brand names: Cheratussin AC, Codar GF, Coditussin AC, G Tussin AC, Guaiatussin AC, ... show all 12 brands Drug class: Upper respiratory combinations Medically reviewed by Drugs.com. Last updated on May 5, 2023. Uses Before taking Warnings Dosage Side effects Overdose Warningcough. darkened urine. darkening of the skin. diarrhea. difficult or trouble breathing. difficulty swallowing. dizziness. dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position. fainting.codeine/guaifenesin systemic Brand names: Cheratussin AC , Guaiatussin AC , Virtussin A/C , Robitussin-AC, Diabetic Tussin C Drug class: upper respiratory combinations Codeine/guaifenesin Interactions. There are 486 drugs known to interact with codeine/guaifenesin, along with 16 disease interactions, and 1 alcohol/food interaction. Of the total drug interactions, 122 are major, 361 are moderate, and 3 are minor. Tell all of your health care providers and lab workers that you take Coditussin AC (guaifenesin and codeine). If you are 65 or older, use Coditussin AC (guaifenesin and codeine) with care. You could have more side effects. Different brands of Coditussin AC (guaifenesin and codeine) may have different doses for children.Feb 16, 2022 · Virtussin DAC contains an opioid (codeine), an expectorant (guaifenesin), and a decongestant (pseudoephedrine), which are ingredients found in many other prescription and over-the-counter products. Using more than one medication containing an opioid, an expectorant, or a decongestant, or taking more Virtussin DAC than prescribed can lead to ... Hydrocodone is a narcotic antitussive (cough suppressant). It acts directly on the cough center in the brain to relieve cough. Guaifenesin is used to help clear mucus or phlegm from the chest when you have congestion from a cold or flu. It works by thinning the mucus or phlegm in the lungs.Guaifenesin and Codeine. Basics. Name. Guaifenesin and Codeine. Pronunciation (gwye FEN e sin & KOE deen) Brand Names: US. Cheratussin AC [OTC] [DSC] Coditussin AC [OTC]Generic name: Guaifenesin and Codeine [ gwye-FEN-e-sin-& KOE-deen ] Brand names: Cheratussin AC, Codar GF, Coditussin AC, G Tussin AC, Guaiatussin AC, ... show all 12 brands Drug class: Upper respiratory combinations Medically reviewed by Drugs.com. Last updated on May 5, 2023. Uses Before taking Warnings Dosage Side effects Overdose Warning91713. Generic Drug Name. Guaifenesin / Codeine Phosphate. NDC Number. 00121077504. Product Dating. McKesson Acceptable Dating: we will ship >= 90 days. Strength. 100 mg - 10 mg / 5 mL. What is this drug used for? It is used to thin mucus so it can be taken from the body by coughing. It is used to relieve coughing. What do I need to tell my doctor BEFORE I take this drug? If you are allergic to this drug; any part of this drug; or any other drugs, foods, or substances.Codeine is an opioid cough suppressant (antitussive) ... Other medications can affect the removal of guaifenesin/codeine from your body, which may affect how guaifenesin/codeine works.Codeine is approved to treat pain and cough, and tramadol is approved to treat pain. These medicines carry serious risks, including slowed or difficult breathing and death, which appear to be a ...Codeine and guaifenesin is a combination medicine used to treat cough and chest congestion caused by allergies, the common cold, or the flu. This medicine will not treat a cough that is caused by smoking, asthma, or emphysema. Codeine and guaifenesin may also be used for purposes not listed in this medication guide. How to use Guaifenesin-Codeine Tablet. Take this medication by mouth with or without food as directed by your doctor, usually every 4 to 6 hours as needed with a full glass of water (8 ounces or ...Opioid drugs can put you at risk for addiction, abuse, and misuse. Misuse or abuse of guaifenesin, pseudoephedrine, and codeine can lead to overdose and death. If you have questions, talk with your doctor. This medicine has an opioid drug in it. Severe side effects have happened when opioid drugs were used with benzodiazepines or other drugs ...Jan 10, 2023 · Active ingredients (in each 5 mL = 1 tsp) Purpose. Codeine phosphate, USP 10 mg. Antitussive. Guaifenesin, USP 100 mg. Expectorant. Uses. temporarily relieves: cough due to minor throat and bronchial irritation as may occur with a cold or inhaled irritants - your cough to help you sleep - helps loosen phlegm (mucus) and thin bronchial ... after a dosage increase. if you are older. if you have an existing lung problem. The side effects of codeine are similar to those of other opioids, and include: constipation. headache or dizziness. fatigue or drowsiness (especially soon after a dose) loss of appetite, nausea and vomiting. Always take medicines exactly as prescribed your doctor.Apr 19, 2023 · Guaifenesin and Codeine Phosphate Oral Solution ( C-V) Robafen AC ( C-V) Major. 200 mg/5 mL Guaifenesin and Codeine Phosphate 8 mg/5 mL. Codar GF ( C-V) Respa. 200 mg/5 mL Guaifenesin and Codeine Phosphate 10 mg/5 mL. Coditussin AC ( C-V) Glendale. 225 mg/5 mL Guaifenesin and Codeine Phosphate 7.5 mg/5 mL. Mar-Cof CG ( C-V) Marnel Aug 1, 2023 · Descriptions. Guaifenesin and hydrocodone combination is used to relieve cough and nasal congestion associated with the common cold. Hydrocodone is a narcotic antitussive (cough suppressant). It acts directly on the cough center in the brain to relieve cough. Guaifenesin is used to help clear mucus or phlegm from the chest when you have ... Codeine / guaifenesin has an average rating of 5.4 out of 10 from a total of 97 ratings on Drugs.com. 39% of reviewers reported a positive effect, while 44% reported a negative effect. Promethazine has an average rating of 7.2 out of 10 from a total of 371 ratings on Drugs.com. 65% of reviewers reported a positive effect, while 22% reported a ... 91713. Generic Drug Name. Guaifenesin / Codeine Phosphate. NDC Number. 00121077504. Product Dating. McKesson Acceptable Dating: we will ship >= 90 days. Strength. 100 mg - 10 mg / 5 mL.Drug encyclopedia Print codeine 10 mg-guaifenesin 100 mg/5 mL oral liquid View more photos The photos shown are samples only 7118 Medication name Warning Uses How to use Side effects Precautions Drug interactions Overdose Notes Missed dose Storage Important note Information last revised July 2023. Copyright (c) 2023 First Databank, Inc. codeine. Used for Pain. Codeine is an opioid pain medication that's taken by mouth and used to treat mild-to-moderate pain. Common side effects of codeine include constipation, itching, sleepiness, and dizziness. It's typically not a first-choice pain medication because it can lead to more serious harm, such as slowed breathing and addiction.Generic Name (S): codeine-guaifenesin. This medication has a risk for abuse and addiction, which can lead to overdose and death. This medication may also cause severe, possibly fatal, breathing ...Jul 24, 2023 · Codeine and guaifenesin is a combination medicine used to treat cough and chest congestion caused by allergies, the common cold, or the flu. This medicine will not treat a cough that is caused by ... Codeine, an opioid analgesic, was originally approved in the US in 1950 and is a drug used to decrease pain by increasing the threshold for pain without impairing consciousness or altering other sensory functions. Opiates such as codeine are derived from the poppy plant, Papaver somniferum (Papaveraceae). Codeine is utilized as a central ...Guaifenesin/codeine ( Guaiatussin ac, cheratussin ac, virtussin ac) is an inexpensive drug used to treat cough. It is more popular than comparable drugs. It is available in multiple generic and brand versions. Generic cheratussin ac is covered by most Medicare and insurance plans, but some pharmacy coupons or cash prices may be lower. Codeine is a narcotic pain reliever (analgesic) used to treat mild to moderately severe pain frequently combined with Tylenol or aspirin. Common side effects include itching, rash, stomach pain, constipation, shortness of breath, nausea, lightheadedness, and dizziness. Codeine is a controlled narcotic and it has the potential for abuse. Dependence and addiction can occur with codeine, even at ...If you are 65 or older, use Virtussin A/C (guaifenesin and codeine) with care. You could have more side effects. Different brands of Virtussin A/C (guaifenesin and codeine) may have different doses for children. Talk with the doctor before giving Virtussin A/C (guaifenesin and codeine) to a child.Schedule 5 (V) Drugs. The drug has a low potential for abuse relative to the drugs in schedule 4. The drug has a currently accepted medical use in treatment in the United States.codeine/guaifenesin systemic Brand names: Cheratussin AC , Guaiatussin AC , Virtussin A/C , Robitussin-AC, Diabetic Tussin C Drug class: upper respiratory combinationsCodeine, guaifenesin, and pseudoephedrine is a combination medicine used to treat cough, stuffy nose, and sinus congestion caused by allergies, the common cold, or the flu. This medicine will not treat a cough that is caused by smoking, asthma, or emphysema.
Jul 24, 2023 · What is Guaiatussin AC? Codeine is a narcotic cough suppressant. It affects the signals in the brain that trigger cough reflex. Guaifenesin is an expectorant. It helps loosen congestion in your chest and throat, making it easier to cough out through your mouth. . Alvy
Jul 26, 2023 · Codeine, guaifenesin, and pseudoephedrine is a combination medicine used to treat cough, stuffy nose, and sinus congestion caused by allergies, the common cold, or the flu. codeine, guaifenesin, and pseudoephedrine will not treat a cough that is caused by smoking, asthma, or emphysema. Common codeine side effects include: feeling dizzy or drowsy; nausea, vomiting, stomach pain; constipation; sweating; or. mild itching or rash. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.Codeine can cause serious unwanted effects if taken by adults, children, or pets who are not used to strong narcotic pain medicines. Make sure you store the medicine in a safe and secure place to prevent others from getting it. Drop off any unused narcotic medicine at a drug take-back location right away.Hydrocodone is a narcotic antitussive (cough suppressant). It acts directly on the cough center in the brain to relieve cough. Guaifenesin is used to help clear mucus or phlegm from the chest when you have congestion from a cold or flu. It works by thinning the mucus or phlegm in the lungs. This medicine is available only with your doctor's ...Codeine es un antitusivo narcótico. Éste afecta las señales en el cerebro que provocan el reflejo de la tos. Guaifenesin es un expectorante. Éste ayuda a que la congestión se afloje en su pecho y garganta, haciendo más fácil toserla por la boca. Codeine and guaifenesin es una medicina combinada para tratar la tos y...Initial dose: 15 to 60 mg orally up to every 4 hours as needed. Maximum dose: 360 mg in 24 hours. Comments: Initial doses should be individualized taking into account severity of pain, response, prior analgesic treatment experience, and risk factors for addiction, abuse, and misuse. Doses higher than 60 mg have not been shown to improve pain ...Jul 24, 2023 · Codeine and guaifenesin is a combination medicine used to treat cough and chest congestion caused by allergies, the common cold, or the flu. This medicine will not treat a cough that is caused by ... Codeine/guaifenesin Interactions. There are 486 drugs known to interact with codeine/guaifenesin, along with 16 disease interactions, and 1 alcohol/food interaction. Of the total drug interactions, 122 are major, 361 are moderate, and 3 are minor. Brand names: Cheratussin AC, Guaiatussin AC, Virtussin A/C, Diabetic Tussin C, …show all brand names. Codeine / guaifenesin has an average rating of 5.3 out of 10 from a total of 87 reviews for the treatment of Cough. 39% of reviewers reported a positive experience, while 45% reported a negative experience. Jul 24, 2023 · Codeine / guaifenesin Pregnancy Warnings. In rats, codeine has been shown to be embryolethal and fetotoxic at maternally toxic doses. In rats and rabbits administered doses ranging from 5 to 120 mg/kg during the period of organogenesis, teratogenicity was not observed. Prolonged use of opioids during pregnancy has resulted in babies born ... CODEINE; GUAIFENESIN; PSEUDOEPHEDRINE (KOE deen; gwye FEN e sin; soo doe e FED rin) treats the symptoms of the common cold, allergies, or flu. It works by reducing cough, loosening mucus, and decreasing a runny or stuffy nose. It is a combination of an opioid cough suppressant, an expectorant, and a decongestant. Physical effects. Codeine taken at high doses could produce the following effects that can last 3-5 hours: drowsiness. headaches. slowed breathing. nausea and vomiting. smaller (constricted) pupils. feeling heavy in the arms and legs. severe itching or warm/hot sensation on the skin.Guaifenesin comes as a tablet, a capsule, an extended-release (long-acting) tablet, dissolving granules, and a syrup (liquid) to take by mouth. The tablets, capsules, dissolving granules, and syrup are usually taken with or without food every 4 hours as needed. The extended-release tablet is usually taken with or without food every 12 hours..